Geez, you guys need to get your panties un-bunched.
It's called free enterprise. A person asks for a price they think is fair, or maybe not. Maybe they just feel there is a P.T.Barnum target out there nearby. (A fool and his money are soon parted)
That being said, I've had people offer stereo equipment, entertainment centers....
I have sold one there and the deal was top notch, tried to buy one and couldn't get the guy to do a 50 mile 1/2 way, even offered more than his reduced price.
Some yoyo's you can spot right off on the first contact, but others take a few more.
I suggest that you state in the post , no dicker, or what ever your policies are to start, it weeds them out faster.