Was at a few record stores around town today (as in, actual vinyl records). I think it's a rule or something that they all have to have Signals, A Show Of Hands, and Hold Your Fire. Only one of the stores had anything by Rush that wasn't one of those (Caress of Steel, Grace Under Pressure (which I bought), and Power Windows).
I suppose few people are going to sell their copies of 2112 and Hemispheres, and if anyone does, they probably go pretty quickly.