Many NFTs either come with or are designed for a physical representation. 100s or 1000s are already installed and viewable IRL. Being an NFT does not preclude the art from being traditionally enjoyed.
It's much more impressive to those people to have paid to support the original rather than having a knockoff... This has been true as long as goods have been produced.
This is a funny way of saying "to enter a speculative market with foolish money."