I think of NFTs like a digital receipt. I get the impression that the folks spending a lot on NFTs are using some kind of crypto coin to pay, and that crypto c

I think of NFTs like a digital receipt. I get the impression that the folks spending a lot on NFTs are using some kind of crypto coin to pay, and that crypto coin may have a certain dollar valuation now but had a much lower dollar value when they obtained the coin. In other words it doesn't feel like they are actually spending the dollars, the effort to obtain those coins was less than the effort to obtain the actual dollars.