Though I can appreciate where you're coming from, support from the casual consumer equals long-term viability. You need that buy-in if this is going to succeed. I worry that $3/shot film doesn't stand a chance if you don't also have the revenue that comes from the 250 crummy shots at a house party.

Maybe there's a compromise point. Perhaps market a far cheaper ($.50/print) but slightly lower quality film alongside a professional, $3/print, higher quality film. That's the difference between this being adopted by the mass market and surviving long-term, versus being a short-lived boutique medium for wealthy artists only.