Yes, that is a given. I should have asked if anyone is still using film to make money rather than narrowing it down to medium format. Some answers have surprised me. That people would buy film prints over that other type of photography was one. It was interesting too that one person said they sold their prints on line. I have heard that a 16X20 is the best size to sell as people can transport them easily and yet see them on the wall from a distance. I don't pretend to be a great photographer, however I will say that I have seen the work of those that are. At least I know good work when I see it. That is better than some. Ric.
Commercially, I'm still shooting some food and product shots on 4x5 E6. As far as art goes, it's been film all the way, with some forays into making large digital negatives for big alt process prints, but the prints are analog in the end. With the art stuff, I don't have to sell the format, just the result, and those results have had very good feedback, so I wouldn't and don't hesitate to use analog processes as part of a profitable workflow.