Not a dense question at all......Besides the entry auction fee (by the way, prime time = more $$$) there is an 8-10% commission paid by both the buyer and the seller on the final sales price. Very common practice to make sure your car doesn't go for less than you want from "what I am told".....lol. This is for the "big auction" and not necessarily for all of the others.
Several years ago, they would allow a "reserve" price and charge you a higher commission just like ebay, but they changed to a "no reserve" only auction and that's when "buying your own car back" became more common place.
