I'd disagree on the Soviet cameras. They are so difficult for the layperson to operate, its hard to imagine one getting worn out. For example I got a Zorki 4 and a Zenit in a box of stuff. Looks like neither was never used or only used a few times before being stashed away in a closet or drawer.
How are these hard to operate? I've never owned one, but I'd love to know before mine gets here. (;