Idk, they seem like they'll forever be a niche market for me. A lot of the art in there is just stuff that people made to make a quick buck, with more effort spent on the marketing segment of things rather than the quality of the product itself. There are still some items there that are worth the price they're posted in, heck some are even underpriced compared to the damn thousands of dollar monkey jpegs people made back then.

There's other use cases for NFTs right now as well other than the art itself ofc, but again they're mostly focusing on marketing it instead of improving the product itself. I do believe with someone appreciating someone else's work though. I've seen quite a bit of quality NFTs in the past.