Has been my experience that when buying something unique with a higher price, I want to know it IS exactly what is being presenting and justifying the price. I would examine every inch of the item and, if necessary, consult a reference book ( I often take them to gun shows with me). On the other end, I have seen seller get impatient and or not allowing people to thorough inspect their high price and supposedly unique item, rather you just shut up, stop asking questions and pay their price and "trust" them, without a review or return policy.
I often see high prices asked for stuff on GunBroker and at gun shows that I just have to scratch my head about.