[JediScum]

I used to go to RECORD stores.... which don't seem to exist anymore.
When you find a place which isn't Wal-mart or Target, they sell Cd's.

If you, Fathom, do have a turntable, and if you can find a place that sells vinyl, hit the dollar bin. Maybe dollar bins don't exist anymore, I don't know.

Other than that, it may be conventions, pawn shops or garage sales.

Online (like e-bay), may be good but, it doesn't give you the"Thrill Of The Hunt" or the haggling experience.