"The NFT boom witnessed in the first and second quarter of 2021 saw about 60,000 new wallets interacting with NFTs, data on NunFungible.com shows."
https://cointelegraph.com/news/opensea-trading-volume-explodes-76-240-ytd-amid-nft-boom
NFT are still SO niche, this is all still so early. When Pokemon, Disney, Lady Gaga, Taylor Swift, etc realize what they can do with NFTs, millions will on-board
The key thing they have not realized yet are royalties. If Pokemon sells a card, they profit but they have no stake in the future appreaciation of that card. With NFTs, you own X% (usually 5%) of the royalties FOREVER. All sales in the future, you get a cut. The profitability of their intelectual property explodes