It has been noted here in several threads that film sales have bottomed and are actually on a bit of an upswing. Combine that fact with the previously noted demise in commercial labs, and there are a lot of people who would be willing to fork over $3500 for a home lab instead of having to ship their film to New York or LA from Outer Kalamazoo and wait ten days to get it back. You can save that $3500 pretty quick on lab fees and shipping charges if you're doing any kind of volume, or you're doing odd sizes like 5x12 sheet film.