[pbspelly]

I guess I'm in the minority, but I feel that what a seller previously paid for a card is relevant. Unless you're using them as fuel to heat your home, cards don't have value independent of what people are wiling to pay for them. So what someone previously paid for a card helps set the value. If I want a card, I may be willing to pay above market, but no one wants to feel like they're getting fleeced.

Also, providing the seller with information about what comparable cards have sold for doesn't seem wrong to me. Maybe the seller doesn't know that his price is unlikely to be met. I'll do that on eBay sometimes, simply let someone know that the going price for something is such and such, that I'll give them a bit more than that, but that they're free to try and sell it for more if they want to.