The wig was for sale over the last month so it wasn't anything to do with people frantically bidding because they had to have it after the show closing. The seller was trying to sell with a buy it now price of something like $600 and it had a reserve price of over $500. Unsurprisingly the wig didn't sell because nobody would bid anything near that price.
If you are interested in buying it then I just got a 2nd chance offer for $450 from them. I'm not interested but I could pass along your contact details. I'd advise you to wait a bit cos they'll probably lower their asking price..or say that you'll pay a bit less than they are asking for it. They've tried to sell it about 3 or 4 times so they're wanting to get rid of it and if you offer say $400 they'd probably agree. E-mail me if you're interested,