i dunno--i have a lot of snapshots from growing up that were shot with a pack film camera (one of those gray folding ones). I can vividly remember cold clips and the smell of coater....some of the best family pictures we have are from b/w polaroids shot on pack film. the only real problem , is that they're one-of-a-kind and hard to reproduce. I have shot 4x5 copynegs and made larger prints in my adulthood of those snapshots, and they do okay. Not great, but the memories are there, so it doesn't really matter.
as for cost? well, last year the price spiked to about 4 dollars a sheet (55), meaning a case is about 800 dollars. I know this because we placed an order for about 4 cases and wound up getting 2 instead, because the price had changed so much from the last time we ordered. I've been shooting out of that last order of film, and have hit at least two boxes that were duds. every single sheet of film had a manufacturing defect in it, where when you peeled it apart, a strip of paper was running lengthwise between the film & paper--so the neg and the print were unusable, by this section about an inch wide that was unexposed & undeveloped. You could still proof with it though--which I did, but I would have been sorely po'd if I had wanted to use that neg for anything else than a proof. I've had problems with polaroid in the past though, with their packaging, so this isn't really a surprise. In the past, I have gotten replacement from them, but I'm not sure that would be much help to anyone down the road who stockpiles the film.
my opinions only