Also, those digital art pieces might also develop into something important in the cryptospace similar to how a Van Gogh or a Picasso are important in the physical world. This is art, this is culture and because we are humans, much of us have an inborn ability to create art and treasure art of different forms.
I speculate similar to ICOs and Defi, NFTs will be here for many years.
NFT market is purely created to help the scammers and money laundering activities. It's a great method to turn your black money into white. There is no art in the entire NFT world.
If you visit opensea platform and browse the collections, you will see ape pictures are being sold for millions and real pieces of art is staying unsold. There are multiple examples you can see during your visit.
NFT market doesn't value art, it values the hype! Once this hype is gone, NFT market will go down to drain as well.