@shortcut and others have already done quite a lot of selling on this limited edition digital art thing. My own art is Creative Commons so it doesn't really fit this concept, so we try to go another way and actually sell real things. But it is an interesting model. There is a market for small editions and why not digital art? I would also like to see it done with Steem. As a internet currency the speed and the no-fee feature is a very strong selling point of Steem.