i've bought a few things at the pawn shops. They are usually prices at full retail as if new. I generally pay half price or less than sticker, tax included. It's just a big garage sale, even if the stuff is brand new/never used. If it is obvious from prior visits/dust on the item, go lower still. It never hurts to ask, and if they see you often they'll appreciate your business even if you lowball them. They usually made some interest payments/lowball pricing off someone on the front end anyway.
I got a decent 6/7 TFO Lefty Kreh flyrod, Grey's reel, spare spool, 2 lines, and a soft tackle bag from Barclays for $60 tax in, and salmon flashers 3 for $10, and a nice Shimano Technium mooching rod from another place for $75.