My local camera shop has a bin of 90s film SLRs with a notice saying they're all broken. I've found that some of them are, but many are not. They only require a battery and a customer willing to forgo a guarantee. I've picked up a Nikon F80S (or N80) and a Canon 620 for about $5 each. Both have worked pretty well after a clean up (F80 sticky rubber) and some minor surgery (Canon 620 backlight). I find the latter very satisfying to hold. It is still possible to get a $5 lunch here (Japan), but sadly not a roll of film to feed these cameras.