I've read on various other forums that mini film far outsells wide and that the smaller cameras are apparently very popular with the younger set. I also might have considered something like this for wide film. Since I found a Polaroid 250 in my father-in-laws closet I've been using 100C and 3000B. The camera had been sitting in there for 31 years and works beautifully after I made the battery mod. I am so sorry they discontinued the 1000B, I really enjoy that film.
They are well above 500k now. I'd love to hate on Lomography and Instax Mini but I can find Mini film locally quite easily. Their ability to raise so much $$$ speaks to what hype can do for the instant film market.
I see a fair amount of Instax around here as well. Strangely, it tends to be found with the digital cameras, whereas traditional film is in the photofinishing department.
“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2