When buying a used boat, it seems that NADA is the only resource available to check price. This is just an idea, but since Wakeworld has been the breeding ground for selling a used boat, I was thinking that there should be some kind of section or mini database in which people list how much they are paying for a boat or the sellers tell how much they sold for. It is similiar to buying a house. You want to research the sale prices of the houses around it before you buy. I think this would be pretty helpful to first time buyers who don't know much about the market, and would also help people price their boats. Just an idea.