I've managed to stumble into a couple of amazing deals, the most recent being a mint Bronica S2 for $120. I found it at a used camera shop in columbus ohio and had to have it when I found out not only how cheap it was, but that it also had a Nikkor lens. I've put about 15 rolls of 120 through it with only 1 very minor problem, a cable release works fine if threaded into the shutter button but doesn't do anything through the cable release port on the bottom of the body. Personally I can't imagine ever needing the one on the bottom so it's fine with me.
Think the one on the bottom is for a double release does it fire the mirror ok?