Post #1905: All I want for Christmas is an economically efficient fake tree

 

This post continues my attempt to transition my family from real Christmas trees to an artificial tree.

Between this, and my two just-prior Christmas tree posts, I think I’ve finally gotten fully up to speed on artificial trees.  Today I summarize what I learned from a trip to Home Depot, and an article from the NY Times Wirecutter.

Wirecutter’s top seven artificial trees were all “fir” or “spruce”.  No pine.  That’s because they use branch tips made out of relatively expensive molded polyethylene to provide a realistic simulation of fir or spruce branches, not the cheaper metal-and-plastic-PVC-strip branch tips meant to mimic pine trees.

(Why no pines?  Fir and spruce have individual short, thick needles directly attached to the branch.  By contrast, pines have bundles of multiple long, thin needles.  I’m guessing that the molded PE technology works for the former, but not the latter.  Thus, my provisional rule:  All high-end fake Christmas trees are now spruces or firs.  Not because people prefer them, but because those are the only ones that can currently be manufactured with the hyper-realistic molded polyethylene process.)

This cost-versus-appearance tradeoff is what leads to the “Frankentree” (below).  It’s now common for manufacturers to use the cheap, not-so-realistic-looking square-cut “pine” PVC needles on the tree interior, twisted in wires like a bottle brush.  And then add the more-realistic-looking molded polyethylene (spruce/fir) branch tips at the outer ends of the branches.

And thus we end up with a symbol of goodwill toward mankind that is entirely determined by the interaction of plastics technology and market forces.  Apparently, the fact that it looks like a tree, but when examined closely is deeply and disturbingly unlike any tree actually found in nature, is irrelevant.

In the end, what I mostly learned from this last deep dive is that artificial trees basically creep me out.  The dominance of the Frankentree in the mid-range market was the plastic straw that broke the Bakelite camel’s back.

With that in mind, I’ve bought a fake tree that’s obvious fake.  Silver, as an homage to the tin-foil trees of my youth.  An indoor Christmas decoration, not some PVC strips (or even molded polyethylene needles) trying to look like an impossible pine-fir-spruce tree.

 


Home Depot stocks Frankentrees

After looking over the marketplace for artificial Christmas trees (Post #1901), and checking out my local thrift shops (Post #1902), my next stop had to be Home Depot.

Home Depot used to stock a mind-boggling array of Christmas … eh … stuff.  Lots and lots of big plastic things to sit on your lawn.  To the point where, in the distant past, I used it as a kid-friendly pre-Christmas destination.  I’d take the kids out to see the Christmas kitsch.  They loved it.  I’m sure they had no idea what “kitsch” meant.

Home Depot has definitely cut back their Christmas stuff over the past decade or so.  They’re down to lights, ornaments, a few lawn doodads, and half-a-dozen artificial trees.

That’s where I found a Frankentree.  I was taking pictures to share with my wife, and I realized something was not right about the tree I was looking at.  From a distance, it appeared to be a … spruce (?), but up close it was clearly stitched together from many different tree species. 

This tree mixed (at least) three different types of needled evergreens.  Apparently the manufacturer was not the least bit bothered that the tree was completely unnatural.  Upon inspection, several of the trees on the floor at Home Depot used this same mixing of different species.

It’s a realistic-looking yet fundamentally unnatural evergreen.  Why did they do that?


Wirecutter highlights fake fir

Wirecutter (owned by the NY Times) rates various types of products and services.  Their annual article on artificial Christmas trees is apparently one of their most popular.

I learned a few things from that article.  You can, in fact, pay well over $1K for a fake Christmas tree.  You should expect to pay several hundred dollars for an acceptable-looking tree.  All of the trees Wirecutter chose were either pre-lit or “flocked” with artificial snow, neither of which I wanted.

In the end, what jumped off the page is that all of the trees Wirecutter liked were marketed as fir or spruce.  That struck me as odd, as pine trees are commonly sold as Christmas trees. And the overwhelming majority of fake Christmas trees I’d seen to date appeared to be modeling pines.

Why were none of the seven Wirecutter winners in the pine family?

I thought back to my Home Depot trip, and the penny dropped.

Fake tree tech has changed yet again.  The flat, square-cut PVC needles of the fake trees of yesteryear are a thing of the past.  Today’s high-end trees use a far-more-realistic-looking fir or spruce arrangement of the needles.

These “fir” trees appear to be made using a completely different technology, compared to the flat-needled PVC-strip “pine” trees.  Based on some of the Home Depot descriptions, those spruce/fir branch tips are made of “molded PE” (polyethylene), not the flat square-cut bottle-brush strips of PVC that are used in lower-end trees.

But that greater realism comes at a higher cost.  An economically efficient tree would combine the cheaper, older, less realistic tech with the more expensive, newer, more realistic tech.  It would only use those expensive molded PE branch tips where they matter, and use the cheap stuff for filler.

And so was born the Frankentree, as observed at Home Depot above. It’s the tree equivalent of wood-veneer furniture.  It’s a good-looking shell of molded PE tips over a core of cheap square-cut PVC bottle-brush branches.

Even weirder, to me, Wirecutter isn’t at all bothered by Frankentrees.  At least one of their top picks turns out to be a mix of spruce and pine needles.  Or whatever those are.  Clearly from two different species, per the picture of that recommended tree on the Home Depot website.  Wirecutter notes the mix of materials, but doesn’t even mention that such a tree never existed in nature.


Conclusion:  Bah, humbug.  The market for artificial Christmas trees.

Bearing in mind that I was looking for an un-lighted green tree, then,  leaning heavily on the Wirecutter article, here’s what you can get for a six or seven foot artificial tree.

  • >$1000: Mostly molded PE fir/spruce branch tips, lighted.
  •  ~$500:  Molded PE fir/spruce over flat-cut PVC needle core, lighted.
  •  ~$150:  Flat-cut PVC needles, high density of branch tips (~2000 tips/6 foot tree).
  •  ~$100:  Flat-cut PVC needles, low density of branch tips (under 1000 tips/6 foot tree).
  •   ~$10:  Used old-tech (separate branches) tree in a box (local thrift store).

Wirecutter more-or-less stated what I’ve been slowly figuring out:  No artificial trees actually look real once you get within about six feet of them.  Some are realistic from a distance.  Above, that would be the $500 and up trees, mostly.

But now, in addition, the most realistic fake trees combine (simulations of) different species, in the same tree.  And everybody seems to consider this normal.

The upshot is that in order to get a realistic evergreen, economics and plastic technology dictate that I must buy a Frankentree, fundamentally unlike anything found in nature.

That’s the point where I’ve more-or-less lost the thread.  What am I looking for again?  What’s my conclusion?

Bottom line is that I opted for none of the above.  I went in the other direction entirely.  I searched Amazon for the simplest, cheapest silver artificial tree I could find.  The answer was a pop-up tinsel tree.  It doesn’t even remotely resemble a tree, other than being vaguely skinny-Christmas-tree outline.

No fluffing the branches.  No finding a place to store it.  The plastic and metal parts separate completely, making it feasible to recycle most of the weight of this two-pound artificial Xmas tree.

Basically, it’s a convenient piece of decor around which we can pile the Christmas loot.  Isn’t that the essence of a modern Christmas tree?

Post #1902: A few lessons from thrift shopping for a Christmas tree

 

This continues the prior post, in which I attempt to transition my family from real Christmas trees to an artificial tree.

In this post, my wife and I hit the local thrift shops to see what artificial Xmas trees were on offer there.  This is a good way to see a wide variety of artificial evergreens, side-by-side, in person.  We didn’t buy one, which is no surprise.  But we learned a lot.

(Unfortunately, I did not think to take pictures, so all the pictures here are fakes — AI-generated from Gencraft.com.)

Takeaways:

1:  There is a thriving secondary market for artificial Christmas trees.  In one shop, they went so far as to apologize for the limited selection.  They’d mostly sold out prior to Thanksgiving, but that they’d be getting fresh stock in over the next month as people in the area “traded up” to a new tree and gave them the old one.

This is helpful not just for buying a used tree, but also for getting rid of one in case I buy something that I end up disliking.  Before this, I figured that donating a used fake Christmas tree was like donating trash.  But now that I know that thrift shops actively deal in used artificial trees, I have a way to dispose of any potential bad purchase.

2:  There are some butt-ugly artificial Christmas trees out there.  Even acknowledging all the limits of thrift shopping, we came across several trees where my only reactions were a) I can’t believe somebody sold that as a Christmas tree, and b) I can’t believe somebody bought that as a Christmas tree.

3:  The fine detail of the needles matters a lot.  Some artificial pine wreaths, in particular, were indistinguishable from real, to me at least.  Others just screamed fake.  The most obvious difference was specular reflections (shiny spots) on the needles.  Broad, flat, shiny needles look like nothing in nature.  They look like plastic, full stop.  Narrow needles with a dull surface appeared real.  In addition, for reasons that escape me, some artificial pine needles were made in shades of green that just aren’t found in nature.  (Or, as my wife puts it, they are found in nature, but only on dying trees.)

In any case, with a bunch of different wreaths in a pile, or an array of trees in one corner, some simply jumped out as being fake.  Others did a much better job of mimicking real evergreens.   And that all boiled down to fairly subtle variations in color, reflectiveness, and shape of the needles.

4:  Fake tree technology has evolved over time, for the better.  Thrift shops let you see older and modern versions of the same goods, in one place.  Old tech trees had removable individual branches that fit into a central trunk, and tended to look only vaguely like a real tree.   All the modern trees had branches that are permanently affixed to the central trunk with steel pivots, and in general looked far more realistic.

After seeing a few, it was clear that I didn’t want an old-tech tree with removable branches.  Modern trees appear to be significantly better.

4A: I think I finally understand the fashion for having artificial trees that look purposefully artificial.  White, say, or metallic-looking.   Back in the day, if your options were to have an artificial tree that tried but failed to look real, or to have a purposefully artificial-looking tree, artificial-looking was plausibly the more stylish option.

4B:  On a tech side note, the old technology of removable branches meant you could, in theory, put the tree back in its original box.  We saw two like that — re-stuffed into the original box — both old-tech trees with removable branches. I’m guessing that’s not typically possible with a modern tree, with permanently attached branches.  So modern trees require something to store them in, other than the original box.

4C:  Old tech trees with removable branches seem to preclude the possibility of a pre-lit tree (that is, one with built-in lights).  So the “pre-lit tree” goes hand-in-hand with the change in the basic technology of how these artificial trees are put together.   It’s really only possible once you go to the permanently-attached branches approach found in modern trees.

5:  Most of the trees in the thrift shops were pre-lit trees.  (That is, trees with the Christmas lights attached.)  I’m not sure whether that’s because a) those trees are better sellers originally, or b) those trees break more quickly, or c) people who want the convenience of a pre-lit tree are more likely to “trade up” more frequently.

5B:  For sure, the preponderance of pre-lit trees in the thrift shops screws up my ability to find a bargain there.  Pre-lit trees have substantially higher original prices compared to plain, un-lit trees.  Accordingly, they sell for substantially higher prices in the thrift shops.  But since I don’t want a pre-lit tree, all this meant to me is that the typical discount-from-what-I’d-otherwise-purchase-on-Amazon was small.  Trees that, for me, appeared functionally equivalent to a an unlit $100-$120 tree new, from Amazon, were on offer for $60 to $70, because they were pre-lit trees.


Conclusion:  Buying a tree from Amazon now looks riskier.

Going into this, I figured I could quantify what I wanted in a fake Christmas tree.  Height, density of “branch tips”, and so on.

What I learned is that the hard-to-quantify aspects of an artificial evergreen have a big impact on how good it looks.  Little details like color, surface finish, and shape of the needles have a big impact on how realistic the tree appears.  Some trees and wreaths were instantly and obviously recognizable as artificial.  From a good distance.  Others were, to my eye, at a reasonable distance, indistinguishable from real evergreens.  And it wasn’t necessarily the build quality or the density of the materials.  It was that some of the needles just plain looked like plastic.

That’s a problem, because I don’t think there’s any way to quantify that on Amazon.  Sure, I can specify a minimum density of branch tips per cubic foot, and so on.  But that’s not going to guarantee a realistic-looking tree.  Instead, how good the tree will look will depend in large part on those little details of the needles.  That’s going to be very hard to judge from a few photos on Amazon, or even from purchasers’ comments.

Now add to the mix all the ugly trees we saw today.  Plausibly, once upon a time, each of those was the apple of some purchaser’s eye.  At least until they opened the box.

You’d think that would argue for buying locally, but my local selection of un-lit, green, artificial Christmas trees is extremely limited.  My local Home Depot has, I think, one that fits that description.  My local Ace Hardware has none.  I didn’t see anything meeting that description at my local Target.  And so on.  I’m guessing Amazon and other on-line retail has pretty much chased the low end of the market — where un-lit plain-green trees would be found — out of bricks-and-mortar retail.

It’s not clear what my next rational step would be.  Probably, I’m going to gamble on something that’s highly-rated on Amazon, sight-unseen.  And if that turns out to be a dog, then off it goes to the thrift shop, post-Christmas, to make way for another try next year.

Post #1901: Artificial Xmas Tree

 

Three key things I didn’t know about artificial Xmas trees:  Fluffing time, branch tip count, and storage.

I knew nothing about artificial Christmas trees.  So I started my research where I usually do, on Amazon.

When I started, I assumed you pulled the tree out of the box much like a magician pulling a rabbit out of a hat.  Reach in, give a tug, and out comes the tree, fully-formed.  The branches must “sproing” into place, or something.  And at the end of the season, you stuffed it back into the same box, the branches neatly folded back into rest position, and you were done.

Five minutes on Amazon, and I realized I had no clue how modern artificial Christmas trees actually worked.  The twin keys to my ignorance were frequent mentions of “fluffing time” and “branch tip count” on Amazon.  Use of these terms made choosing a tree kind of difficult, as I had no clue what either one of them was about.

Fluffing time:  The big branches of the tree do fold up and down against at the trunk, but all of the little branches are just stiff wire, with plastic “pine needles” embedded.  Turns out, all those little branches are packed flat against the main branch.  You have to bend each individual branchlet into place, by hand, one at a time, in a process termed “fluffing” the tree.

Branch tips:  And this is where the “branch tip” ratings come in.  A six-foot artificial tree might have anywhere from 1000 to 2500 “branch tips”.  Which more-or-less equates to that many little stiff pieces of wire that must be bent, by hand, into some approximation of a real tree.  More branch tips (per unit of tree volume) leads to a fuller-looking fake tree.  On Amazon, time and again, the manufacture would say something like “45 minute assembly time”, and the Amazon comments would say something along the line of two to three hours of “fluffing time”.

The upshot is that “fluffing” is the industry euphemism for spending hours of time bending little stiff wires covered in bristles, so that your myriad branch tips approximate the look of a real tree.  The near-universal advice on Amazon was to wear gloves and take your time.  In fact, many of the trees on Amazon come with a pair of gloves thrown in.  Presumably because you’ll need them.

And the third key thing?  Storage.   Because, although nobody say this explicitly, fluffing appears to be a one-way street.  I get the impression that nobody packs their tree down into anything like the original size.  As a result, you need somewhere to store your fully-fluffed tree — possibly in pieces, possibly slightly compressed — for the off season.

The upshot is that a new artificial tree requires several hours of “fluffing time”, wherein you take 1000’s of branch tips and bend them into shape.  After which you must store the tree in its fluffed condition.

 


Purpose and summary of this post

In our family, we’ve always gotten some type of real Christmas tree.

But this year I’m going artificial.  I think.

As usual, before I buy a consumer durable, I do my homework.  This post summarizes what I’ve learned so far.  Starting from a point of complete ignorance about artificial Christmas trees.

Briefly:

  • Artificial trees are overwhelmingly the U.S. norm, with roughly 85 percent of households with Christmas trees opting for an artificial tree.
  • Families with little kids tend to favor real trees, and tend to transition to fake trees as the kids age and the parents retire.
  • The main reason cited for buying an artificial tree is convenience, which I think dovetails with the use of artificial trees by age.
  • Artificial trees last about a decade, on average.  So the decision to go artificial kind of locks you into it for a while.
  • Environmental concerns for real-versus-fake trees are more-or-less a wash,
    • But the longer you keep the same fake tree, the better.
  • For a newly-purchased fake tree, “fluffing” the tree — bending thousands of wire branch tips into position — seems like a major pain.
  • Fluffing is a one-way street, so you need a place to store your fluffed tree in the off-season.
  • Trees with embedded lights don’t last as long as plain, unlit trees.
  • White trees tend to discolor over time, particularly if stored in non-climate-controlled areas.
  • The more “branch tips” per unit of tree volume, the fuller your tree should look.

The upshot is that I’m looking for a plain, un-lit, un-decorated green tree.  With a reasonable number of branch tips per unit of volume.  (Which, of course, I have worked out a formula for.)  And the first thing I’m going to do is scour the local thrift shops, because the thought of spending hours “fluffing” a tree is unappealing.

We’ll see where it goes from there.


Background:  Oceania had always been at war with Eastasia

My father, who shouldered most of the labor, once suggested buying an artificial tree. We called him out for the vulgar suggestion of convenience over tradition, and he never brought it up again.

Aryn Baker, in Time Magazine, December 2022.

I can relate to the quote above.  As the family member officially tasked with Getting The Tree, I’ve been lobbying for an artificial tree for years now.  The stopper has always been my family’s refusal to consider an artificial tree.

In particular, my wife was clearly and firmly against buying a fake tree.

Or so I thought.

Our Christmas tree traditions have been sledding downhill for decades.  Once upon a time, we’d make a big outing out of taking the kids to a cut-your-own-tree farm.  That lost its charm as the kids got bigger, so we went with the trees offered by a local charity.  We’d go to the lot, make a fuss over getting just the right tree, then overpay the local charity, all in the spirit of the season.  After a few years of that, we got to buying our tree so late that my only option was to shanghai whichever child was available for a last-minute run to pick up a tree at the local big box hardware store.

So we were already at the point of real-Christmas-tree-as-industrial-commodity.  Which it has been, all along, in reality.  But buying one in the garden section of Home Depot just hammered that home.

Deck the Halls and scan the barcode?  Not very Christmas-y.

But last year I hit rock bottom, with an exotic tree species, the brown pine.  On a whim, I picked up a little live tree, figuring to plant it after Christmas.  It had some species name on the label, but as it turns out, it was actually a member of the brown pine family.  This was only revealed a few months after putting it outside.

And so, in the spirit of the holidays, I once again asked my wife if she still objected to artificial Christmas trees.  And the answer was not merely that she had no strong objection, but that she’d never had any objection to artificial trees in the first place.

And just like that, I’m in the market for an artificial tree.


Environmental impact of artificial Xmas trees?

In a nutshell:  It’s no big deal either way.

First, If I’m an environmental sinner for buying a fake tree, I’ll surely have a lot of company in hell.  Households with real Christmas trees are a small minority.  In 2021, about three-quarters of American households displayed a Christmas tree, and of these, 84 percent have an artificial tree (reference).  That’s figure varies a bit from year to year, but is in the low 80 percents in all the surveys shown on the cite referenced above.

A different (yet seemingly credible) poll shows just 71% of surveyed adults (who were having a Christmas tree) planned on having an artificial tree (reference).  That’s a huge discrepancy (versus 84 percent, above), for a simple yes/no question.   The same article cites the association representing Christmas tree growers, which puts the number around 75 percent, but should be treated as a number from an advocacy organization.

So which estimate is more likely to be right, 71% artificial or 84% artificial?

Don’t be mislead by statistics about annual Christmas tree sales.  Based on the survey cited above, the median life of an artificial tree is about ten years.  Accordingly, each year’s sales of real trees top the sales of artificial trees.  But that’s only because the typical artificial tree user buys a new tree just once a decade.

That said, annual sales data, coupled with a typical 10-year lifetime, suggest the 84-percent-artificial estimate is correct.  In a typical year, about one-third of Christmas tree sales are artificial trees (reference).  With an average 10-year lifespan, in the steady state, that (via simple math) implies that about 83% of Christmas tree used in any given year are artificial trees.

The upshot is that real Christmas trees are not exactly a relic of the past, but they long-ago lost the bulk of the market to artificial trees.

Further, and without citation as to source, my decision to switch to an artificial tree late in life is typical, as is my reason for doing so.  As people age, and no longer have young children in the home, preferences shift toward an artificial tree.  And the most-cited reason for going with an artificial tree is convenience.  Both of which describe my situation.  And so, my family’s long downhill slide toward fake-tree heresy is apparently normal.  Young families with small kids more frequently opt for a real tree.  Retirees, less so.

Despite artificial trees being the clear winner in the Christmas tree war, there seems to be a robust and highly-opinionated debate over the environmental impact of real versus artificial Christmas trees.

Which I find just shy of hilarious, given the context.  Kind of like obsessing about the environmental impact of plastic straws, as you sit in your Hummer waiting your turn in the McDonald’s drive-through.

In any case, as I contemplate buying a bunch of gifts that my family doesn’t need, I find it hard to get exercised about the impact of the Christmas tree itself.  Virtually every material Christmas gift will have been made overseas and shipped here in single-use packaging.  Which I will then re-wrap using yet more single-use wrapping paper.  Because it’s Christmas, and that’s how we do things here.  In that context, the difference between a once-a-decade purchase eventually destined for the landfill (fake tree) and a yearly purchase of some custom-grown compost (real tree) is lost in rounding error.   It’s just too small to matter in the grand scheme of the season.

Even more than that, the choice between real and artificial is more-or-less a wash, for the average purchaser, in terms of overall environmental impact.  Depending on whom you listen to, for the typical user, if you keep your artificial tree for enough years, you’ll have about the same environmental impact as the equivalent string of real trees.  The break-even point is five years’ use of an artificial tree (see this seemingly-competent .pdf life-cycle analysis).  Some say ten.  This one says 7 to 20.  Pick a number.   Some wing it and say never, based on what amounts to moral or emotional or other (e.g., fear) considerations.  But of the serious life-cycle analyses of the issue, somewhere in that five-to-ten year span, your N-year use of a steel-and-plastic artificial tree will have about the same environmental impact as growing, shipping, and disposing of N real trees.

YMMV.

So, for once, I just don’t care enough about the environmental impact to bother to look into it.  It’s just too small to matter, in this context.

 


Narrowing it down

My only environmental takeaway is that the longer the artificial tree lasts, the better.  But this immediately gives me three guidelines as I start to sort out what’s available locally and on the internet.

Unlit.  You can buy fake trees that are just fake trees, or you can buy trees that have Christmas tree lights already embedded in the fake tree.  Data pretty clearly show that trees with embedded lights have a shorter lifetime than unlit trees.  I’m not sure whether that’s literally due to lights breaking and burning out, or whether the persons attracted to the convenience of a pre-lit tree are more likely to dispose of a tree sooner.  That said, the (sketchy) fake-tree longevity data argue for buying an un-lighted artificial tree.  Plus, I already own lights.  And putting the lights on the tree is part of the Christmas tradition.

Green.  You can buy fake trees in a variety of colors, including ones that mimic snow on the tree.  Heck, you can buy them with the ornaments already (permanently) attached.  My take on it is that anything other than green is going to get old pretty fast.  And that, literally, the white plastics on white trees tend to yellow over time, particularly if stored in areas that are not climate-controlled, such as an attic or garage.

Better quality.  One huge drawback to buying a fake tree is that it’s a commitment.  Once you buy one, you’re pretty much stuck with it for the next decade or so.  You can’t in good conscience try it one year, decide that you’d rather have a real tree, and toss it in the trash.

Given that, even though I’m not quite sure how to judge this, I think that purposefully shopping the low end of the market might be a mistake.  In theory, all these trees are made from steel wire and PVC plastic.  So I’m not that worried about having a cheap tree fall apart.  It’s more that if the tree doesn’t look really nice, I’m less likely to want to keep putting it up.

The upshot is that I want a better-quality, un-lit, green Christmas tree.


Step 1:  Hitting Amazon as prep for hitting the thrift shops.

At first glance, it’s hard to make sense of the pricing of artificial Christmas trees on Amazon.  The price per foot, for the same model of tree, rises steeply with the height of the tree.  Below, increasing the height by 66% (from 4.5′ to 7.5′) increased the cost per foot by 180% (from $13/foot to $36/foot).  By contrast, I think that real trees are priced more or less the same, per foot.  You’d expect an 8-footer to cost about twice as much as a 4-footer, or zero percent change in the price per foot.  So the pricing structure of these artificial trees seems grossly at odds with what I’m used to, for real trees.

But just a little analysis shows that this steep increase with tree height makes sense.  For a given manufacturer and model of tree, pricing is pretty much a case of “you get what you pay for”.  The reason that costs rise so steeply with tree height is that the total volume of the tree rises faster-than-linear with tree height.  And the manufacturers more-or-less have to fill the volume of the tree with something.

 

To a close approximation, for this “family” of trees (same model, same manufacturer):

  1. The cost is about 7 cents per branch tip, more or less.
  2. The density of branch tips per cubic foot is roughly the same for all but the smallest tree.
  3. The actual height/width ratio falls as the height of the tree rises.

I think this, along with a look at a few similar trees, tells me roughly what I need to know as I go looking for a tree in my local thrift shops.

Mostly, there’s no free lunch.  The pricing of these trees seems to be almost entirely a function of the volume of materials used.  Count the branch tips, multiply by a few cents per branch tip, and that’ll be the price.

In addition, it appears that manufacturers of a given model of tree shoot for some more-or-less uniform density of branch tips per unit of tree volume.  Turning that on its head, for a given desired density of branch tips per unit of volume, I should be able to select any size of tree, and still be able to meet that goal.

So, with Amazon as the baseline, I think I ought to be able to look at trees and tree prices, across thrift shops, and make some sort of informed judgment.