Even if the price goes up, I'll continue shooting Tri-X, because I like the way it looks. Maybe I'll shoot it differently, if it gets too expensive, but it has to get pretty outrageous before I rule it out on the basis of cost.
I gave up on 8x10" Polaroid when it was getting to be over $15 an exposure.
I can't imagine what a Polaroid shot at that size must have looked like. I'm sure it was fine.