Man! What an argument!! The seller set the initial price at $9.99 and the model went up to $567.00 with 12 different bidders!!! Good for the seller!!!
It is clear the market is hot for a model like this. Who are we to decide that this price was too high? I agree that it is a lot of money but that does not mean that the price is too high or that we'll pretend to set up some ridiculous sort of price police. Then we'll have to start policing art sales... a Van Gogh for several million Dollars?? No can do!! Ridiculous...

or sports memorabilia [a beaten up little ball covered by signatures (one from a gus named Babe something) is sold for several thousand Dollars] or anything else for that matter.
Where do you think the prices for those horrendously expensive unique stamps, on the Stamp Price Catalogue that you mention, come from?