How much a G-body worth is dependant on the seller as well, is he/she willing to wait out longer and search harder for a buyer willing to pay what the seller wants, or does the seller needs cash or get rid of the car quickly and willing to take the first decent offer they get? Mike's friend was willing to wait years to get the price he wanted, not every seller is going to have the luxury to wait that long. In short, the more quickly a seller wants to sell their item, the more it will cost them with reduced price.