My last three pawn shop acquisitions...
1976 Remington Nylon 66 Bicentennial Engraved...$60
1968 Remington 250 lever-action...$115
1995 Marlin 922-M w/ Nikon scope & 3 mags...$300
Hagglin' well & knowing the weapons in question are your best bets...
and if you don't know the weapons...step outside to think...
and whip out that laptop/I-phone to check prices & potential issues
And I do carry a Stoeger Gun Trader's Guide in my truck at all times...hehehe
Condition is a huge factor...the fact that all three weapons had dirty actions was a price-lowering-point in all cases...
I personally don't consider that a flaw, just an inconvenience and a bargaining tool...
"Good Grief this action is fulla crud!" coupled with an "EW!" look often gets the price ball dropping immediately...lol