As far as Polaroids, I don't think most are worth much, the SX-70 being one that does have some value (which I have and it's a joy to use). I have another vintage one that used roll film but I got it because it's cool looking. And supposedly it could be used as a pinhole sort of thing but haven't tried it. What do you have Charlie? I find that the pack film lasts and is usable but The Impossible Project film has/had emulsion that tends to dry up. I may have a pack of something in my fridge I could let you have.