I had 2 SGBs, that I bought as a kid because they looked like Neoton Graziosos (find one of those...).
I have recently played a few later '60s SGCs and a doubleneck like the one on Ebay right now. It wasn't until a few years ago that I had any interest in what I once had, mainly the pickups. I seem to recall that they were really noisey and microphonic, but I was a little more into distortion then too... The guitars felt kinda cheap overall as well, which isn't necessarily a bad thing in my book... I was just a kid at the time, and honestly was too stupid to have any concept of the history or value of these instruments. I wish I had held on to one of them, if nothing else for nostalgia. But then again, they'd probably just sit in the corner unused, and there's no point in that.
Check out this site if you haven't seen it already:
http://www.carvinmuseum.com/guitars.html