Why is digital scarcity a good thing? Why is scarcity at all a good thing? Is there any reason for this, outside of trying to sell them at an ever higher price? And how does sharing a read-only e-ink card benefit over a regular card, or a card with an NFC tag in it?

I get the feeling people think because things are scarce already, scarcity is good. but... it really isn't. outside of a store-of-value, there is no real benefit to it, is there?