Its not fun when people would like to buy something at the price those who made it say it should be sold, but others buy it bc of contract language and double the price. That smacks of unfairness to those involved. Worse, these second set of people promise some folks in writing w adhesion contracts to sell the item at the suggested price, or a little over, and then break those promises with impunity bc of the adhesion contract. Then, as icing on the cake, the second group work among themselves to remove negotiation from the market place by agreeing to sell all such items at a very large mark up. Once upon a time this was called a trust or market manipulation. The counter argument is these items that are being sold are few in number, their contracts are legal (allowing them to lie and beeak the contract without consequence), and that the market itself is not manipulated. They arent controlling prices for all cars by dodge or whatever, but only this limited set of collector items which, they will say, any sane person would expect to sell for double or quadruple the suggested price. Theybwill say the invisible hand of the market place is not always pretty.
I say, treat.people fairly, if youre going to sell to the highest bidder, tell everyone up front. Thats all i want. These folks dont care. They feel theyre special and can do what ever they like wo consequences.