The platform and the community matters when you are minting NFTs. Polygon may flaunt the low fees for all they want but there is already plenty of art NFTs minted on polygon which fetch pennies.

Go with Ethereum if you want to but not before creating a marketing hype or story about why somebody should be in possession of the "masterpiece". You can carry the usual promise of "Each NFT comes with the original piece, shipped directly to address of user's choice".

I am surprised at the "surprise" you guys are expressing here. NFTs have been selling for crazy amounts for pretty long. 200K is nothing. There are collections like the cryptopunks, BAYC etc that have been selling for millions at a time. This is really just all the money floating around in the form of Ethereum. Much like ICOs, It ultimately benefits a lot of closed anonymous groups with established pedigree who hype projects of their choices and then sell them for millions. Some benefit does accrue to the artist community too and a lot of luck ones have become Made men.