I totally agree ! There will be a few which are genuinely art (or perhaps unique porn...). But the rest will be poorly made pixelated junk with little artistic merit. More importantly, how can you value something like that ? It's a bit like holding a crypto where every token has to be haggled over individually to find out what it's worth. Looks like a bubble to me.
But once the froth is over, I can see some really important use cases for NFT's - property deeds, legal documents etc, where there is a need for authentication and to confirm no alterations have been made.