A big part of why NFT's exist is specifically to enable stuff like this-- money pass transactions, illiquid trades booked at arbitrary values, etc. This crap about art is really 90% cover for money laundering, graft, and pump and dumps.
This is one of the most common criticisms of NFTs, but is there actually any data to back it? I don't mess much with Ethereum-hosted NFTs as the data that makes them unique and gives them value is often stored on private servers (as opposed to decentralized ones), but the collectors I know who are into digital collectibles are in it for the value, and because they see potential in it. A far more realistic problem is people selling NFTs back and forth to themselves in order to create artificial value.
What's struck me as a touch ironic is that bitcoiners are criticizing NFTs for the exact same reasons nocoiners criticize bitcoin:
"Anybody can make one." ✓
"It's a bubble and a fad that will never catch on." ✓
"It's a highly illiquid market, or else it's all wash trading." ✓
"Its only used by money launderers and criminals." ✓
What am I forgetting?