This because something is scarce, doesn't make it valuable. Claims to the contrary are just another example of crypto bros not understanding economics or human behaviour. Otherwise, a whole bunch of people with boxes of Beaning Babies would be rich by now.
Please do mansplain to everyone about "understanding economics or human behavior", two topics that are barely understood and have wildly unpredictable outcomes on any given day. Back to grown up talk: scarcity doesn't create value by itself, no. A giant multi-billion $ bulletproof-ish network of millions of active users trading a scarce commodity does create value.
Isn’t scarcity relative to demand? I mean each cubic meter of soil is globally unique, but no one cares. And, in the long term, demand plausibly has a relation to utility?
I do speculate that part of the appeal of a non-loan/investment based store of value to very rich people is that hey wish they could keep all their wealth in a vehicle that didn’t involve investing in the overall good of society, but that is a childish wish - wealth is inextricably linked with the prosperity of the society in which it is enmeshed. A billionaire in a society ravaged by disease, hunger, and conflict, shorn of the comforts of science and technology, will be poorer by far, in terms of objective measures, than a billionaire in a society where the people are educated and science and medicine are widely available, especially over he generations.
It's related to the demand. That's why unique things might not be scarce especially when there's a lot similar things.
That's why NFTs are not scarce even though they are unique.
Personally I would also wish that billionaires kept their wealth in things unrelated to the real world. Because when they put it in the real world they hike up the price for everybody by creating illusion of demand that really isn't there because they won't use what they bought.
There are a limited number of pure collectors, or even FOMO collectors. And much of this collection value comes about through increasing limitation of an item(1), along with a population increase (making more collectors)(2), and increasing wealth of current collectors used to bid up the price on collectibles (wealth increase through means other than their collection, obviously).(3)
(1) - If you buy bitcoin now you might be part of increasing the price of a bitcoin by increasing its rarity through the means of losing your private keys. But this doesn't benefit you.
(2) - We're reaching the point where our carrying capacity is starting to hit limits. Maybe in a few hundred years we'll have space colonies to keep increasing the population, but: 1) This won't benefit you, as you probably won't be around then; 2) There will be other collectibles that the then population may be more interested in. It is the case that certain collectibles are incredibly rare (single digit numbers), but also cost less then $10k, simply because there are not that many interested collectors.
(3) - If you sink most of your investments into crypto this limits the ability of your wealth to grow outside of your collection.
I've got some fresh toenail clippings you may be interested in! I only clip my toenails about twice a month, and probably will cease production entirely within 45 years.