Ryan Elkins wrote:

Think of what you are buying- crap people got rid of prior to
moving, leftovers from their garage sale, etc. Not the best quality stuff to
begin with.

Ryan

Well I mainly look for the nicer audio gear, tube based electronics,
and old analog synthesizer keyboards. Good thing is, the Goodwills seem
fairly clueless as to any value the stuff may have. Example: I bought a
mint condition Roland Juno-106 keyboard sans pwr cable for $19.99.
Street value is at least 350$ in nice cond./working order. They
regularly sell solid state organs you can't *give* away for 60-100$.
Still waiting to find some old Moog or Sequential stuff....:-)

I've made decent money on Ebay scooping up the old Marantz stuff for a
few bucks, cleaning it up and taking care of any issues. At least it
ends up with someone who actually wants it and won't shove it into the
garage to rot.