Autism warning from a sports card hobbyist.
Okay here's what I don't get about NFTs as a replacement for general sports trading cards. So the rarest (and subsequently most expensive) cards in the trade are autographs and to a much lesser extent swatches (a scrap of a jersey embedded into the card). Periodically you'll see a news article about a card selling for six or seven figures, and if that card was made any point after the early 90s, it's almost always an autographed rookie card.
What I'm getting at is there's still a memorabilia aspect to the hobby in higher end cards, in that there's some tangible connection to the player whether it be an autograph or a piece of a jersey they wore in a game.
To tie this into the art collector aspect, leaving aside the money laundering and all that shit, they still have something they can put in their house to admire and show to guests. I suppose you could do the same with digital art on a screen, but the difference between a copied jpeg of a piece and the official NFT is nonexistent outside of the blockchain. I guess theoretically if 3D printers get advanced enough, they could perfectly mimic brushstrokes, pigments and whatnot of a Monet painting to the point that an appraiser would be unable to distinguish it from the original, but we're not there yet.
I just feel like such a boomer when it comes to this stuff. To tie it back into cards, I've sold some numbered cards sans autograph or swatch for $100 ish, but the real money is in the memorabilia cards. This hobby is in a massive bubble right now whether it be physical or digital, and in my opinion, these NFT cards are going to be the first to crash.