I wonder how many NFTs, of all those created at the moment, have any value at all, not only to their owner, but to the rest of the community or even to world culture? How many? 0.001% of the total? Less? More?
-cut-
Probably slightly more then with erc20 or bep20 tokens. As those are even easier to make, you don't need even images to attach to them. I consider NFTs basically as shitcoins or memecoins with pictures. At least with those you can play with more visuals. Having a million pepe coins seems less visully entertaining then having 100 different pepe nfts. Even though you don't own the pictures, just tokens linked to them.
Probably because many people associate NFTs with images. I've rarely seen NFTs containing chunks of text or audio files. Probably because many people prefer to see what they buy rather than read or listen to it. I remember there was even a little hype around NFT with famous tweets, but that hype quickly subsided and didn't get the proper exposure. Even the NFT, containing the very first tweet in history, has fallen in price many times over, as few people are interested.