They might be valuable to other members of the NFT believers group in the same way that rare baseball cards are valuable to other baseball card collectors, but the rest of us just aren’t interested in trading digital baseball cards of JPEGs.Well that's the point isn't it?
It's valuable within the in-group that the person is part of. It increases their status within the crypto community and gives them access to exclusive networks/events.
Sure you can right-click save a crypto punk, but will that allow you into their community?
Much in the same way that I marvel at peoples ability to spend millions of dollars on Modern art (Basquiat's for example look like a 5 y/o drew them), NFT's to me serve a similar function.
Yet another way for humans to form tribes, create meaning and use conspicuous consumption to signal status.