Wayne, from the tone of your posts one could equally say you are an owner who overvalues what he has and that is perfectly fine if you are not in the market to sell, but the market dictates what a car is worth at any time, prices ebb and flow. Assessing recent GT5S sales and knowing of one exceptional car available in Europe that could be had landed in the US for similar money I think the market has corrected somewhat from previous highs where GT5S cars were disproportionately valued over other Panteras, for what is basically a fender package. A more rare Si with a completely redesigned chassis components and drive train I can see, but even those are changing hands in the high $200's.
I was aware that Mecum had a post auction sale clause where they were due commission on any sale within 30 days, so I guess it is pretty standard.