I agree, the bidding has gone mad. Whoever the various bidders are, they don't seem to be worried (or are unaware) about the probability that this is not natural. There are people with money to burn in this world. Even if I had the money to spare I wouldn't bid for such a specimen at any price (assuming it wasn't a CITES listed species, of course).
Been around this genus a lot and I am aware of the problem of specimens "greasing up", to me this is not natural but has been badly degreased, I really can't weigh ebay bidders up at all, so much money for a bog standard male worth at best £50
It seems regarding butterflies, many will go to any lengths to make money. A German museum once had an early six-winged specimen (four hindwings) of a nominate paradisea, now that would take some beating by the fraudsters of today. Unfortunately, another curator was so incensed at the purchase that he had the " natural curiosity " destroyed. Now beat that for all those that like to sell bogus specimens.
As wollastoni remarked: collectors should check the ICF before bidding on such so-called rarities. Must be a lot of rank amateurs out there who think they have this science and hobby well in hand ! Any seasoned experienced collector/ hobbyist worth his salt sees through these kinds of false offerings. Pity.