I shoot 'em. Every one of them. So, in some regards, I enhance the values of others guns, while depreciating my own. The membership here should thank me.
It is a waste of money for me to buy NIB guns except as trade fodder. Also, I don't care to scrutinize every gun I touch with a jewelers loop, I find it unseemly, so, the ease at which I might be duped is high.
I am a trusting soul in a sea of sharks. Better for me to buy guns past their prime and put a few dings in them before they get traded off.