I think going forward, the NFT will be the primary product for the digital artist and the monoprint will be the physical freebie thrown in.
And I'm not trying to start a whole thing about NFTs, but rather point out the above discussion is exactly the pain point NFTs are trying to solve in the digital art community... Just sub out the words contract, acknowledgement, COA, title, stamp, or watermark for NFT or blockchain contract and the traditional collecting community will have a better understanding of what these newfangled things are actually for.
The infuriating thing will be when the initial collector resells the piece and doesn't ship the freebie monoprint. Well, guess what... at that point he just owns a less-valuable "one of many" print. The NFT owner can ask the artist for permission to strike another monoprint from the source file on ipfs (and the new collector will likely pay for the printing, because why would the artist do so.) And that new monoprint could be 40 ft tall or whatever since it just belongs to the new collector. The NFT is the equivalent of a title to a car. And if you sell a car without a title (for example, if the first collector tried to sell the orphaned first monoprint), then the market doesn't see it as legitimate and prices it down accordingly.