Maybe there is something really special about that one that makes it worth more than average. Maybe it has CT laser grips or a gold-plated hammer or a letter of introduction from John Ross or something.
I used to fool around with handmade knives, and I've been known, right after a fat payday, to pay a price for a knife that had my knife buddies telling me, "You're a flat-out fool!" Tough toenails - I liked it, I could afford it, I bought it. MYODB.
I am fortunate enough to have a rather rare firearm that you don't see everyday. The guy I bought it from got it as a gift from someone who is now dead, but you'd recognize the name. Some years ago I was getting divorced and needed some money, so I contacted a dealer and offered it for sale. I named a price that no doubt made him think I was greedy, like some members here think about this seller. I got a counteroffer from him, and another from a contact of his, both lower than my price, both of which I refused.
They probly thought, "What a greedy b*st*rd!" (which isn't true, but you only have my word on that). The real truth was, that gun was special to me, and I knew if I sold it I'd likely never even see another one, much less own it. So I wanted X thousand dollars to part with it. They offered less - thank you for the offer, but no thanks. I sold a truck instead, and paid my obligation (now I drive a better truck).
So the seller's asking price is the product of a complicated mental process, the details of which we know nothing about, or even if we're comparing apples to apples. It seems kinda sudden to accuse him of poor character on his asking price alone. If his price is in fact too high, it's a self-limiting problem.
Parker