It's definitely a cool bike, not just another 10 speed in my mind. If you list it on craigslist, put a link to this article: http://sheldonbrown.com/schwinn-braze.html

If you can convince potential buyers that it's cool and pretty rare (which it is) then I think you should be able to get at least $250 for it. I bet there are people out there looking for these bikes. I'd pick one up if I could.