I agree, FTurner. Pawnshop "finds" depend largely on the owner. As said earlier, the owner likes and hates can greatly effect price. Owner and staff knowledge, also. The innerweebs has greatly altered the lack of knowledge, for those taking the time to do the research.
I have come across some finds, though.
Picked up a Marlin 1894 .22Mag $125 because Marlin "no longer in business" and ammo is "impossible to find".
P
Same pawnshop, Savage 67E 12ga missing an action screw, so action wouldn't cycle $"4 Numrich item", $40 out the door, as a parts gun.
When son was in college, we spent 1 day a month visiting pawnshops. Would peruse the shop, eventually ending up at the displays with electronics and test equii. Any Fluke meters were our targets. Picked up lots of meters for $10-$35, after convincing the clerk the meters were defective. I took the meters to my shop to clean, repair, and calibrate. Son would take them to class and sell for $100 (30% of new cost), to his classmates. I sold many of them to electricians and refinery techs for 80% of new cost. Best find was a Fluke transmitter calibrator. A new model, that had been out less than a year, was hard to find and sold for $5000. I asked pawn clerk "if they had any meters?"
He said they had 1 that had come out of pawn, that morning. It was a Fluke of some kind. He couldn't get it "read voltage", so owner told him to mark it $50.