As a buyer, I always try to act professional (I negotiate multi-million dollar contracts for a living, and personal buy habits are just as important as professional to me). I buy much more than I sell. Likewise, as a seller, I always try to act professional. There will always be those who try a bottom dollar grab, or kick tires, or try to wear you down through endless questions and requests. In either role, though, I am never afraid to walk away. There's always a nice way to do it if I need to. That being said, I always hope I run into a seller who is reasonable and willing to listen to concerns on used items-I may try to negotiate if there is an issue, but only for enough equitable adjustment to fix the issue (like replacement of a broken grip, or something), and only if the starting price warrants it. For guns and other personal buys, I never mind paying the asking price, if it's a fair one. Otherwise, I don't have a reason to be there in the first place. Goes for my sales prices, too. I might haggle a little bit, if I want to, but I can always take my gun and go home. If I have an item priced wrong, I'm always willing to listen to reason.