I say keep a hybrid system of both dSLR and film RF.
Personally, I choose the D300 or M7 depending on the job. If I'm doing a car shoot for a client, the D300 comes out. In fact, if ANY flash-work is involved, there is no question about what to use: I will always use digital. I simply can't afford shooting a billion polaroid tests, choosing what you hope is the best exposure based on those tests, and hope that your final image turns out the same as the polaroid.
Actually, I would use my D300 99% of the time when it comes to a paid job. I might bring out the M7 once in a while to shoot a portrait or two or maybe a model.
Other than work, I use my M7 90% of the time (I shoot primarily BW. If I want colour, I'll pull out the D300). The M7 is much smaller, less invasive, and just a pleasure to use. Also, as weird as it sounds, for me, it's waaaaaaay easier to travel with a film kit.
When I toured ecuador last summer, I had to lug around my body, grip, lenses, memory cards, extra batteries, a laptop, an external hard drive, and cables for everything. It was probably 25lb in total.
With my M7 and 50, all I need to take is maybe 30-40 rolls of film and I'm set. If I decide to process along the way, then it is only an extra 1-2 lb in developing chems and tools. In all, the kit would 10lb MAXIMUM.
Anyways my thoughts are mad scattered.. sorry : D