Do they give you a fair price when your selling used equipment?

Depends on what you consider fair, will they pay what you paid for it? No, but they do a good job finding the true market price and giving you that. Hope this helps.

If you check the internet(Reverb, Ebay, etc) and assume at least half of what it is selling for there you have a good idea of what you might get. It will depend on the item and how popular/useful it is. I have not had any issues with selling anything there.

I found they offered a few bucks more than guitar center down the street