sellers make HUGER amounts of profit with Mystery auctions! It's a way to get rid of stock that will not sell, so all you do is get 20 items with a Retails price of say $40 each = $800, and list it for bid price $0.99, watch it sore...
I had some designer (genuine) Pony clothing and bags, I'd tried everything and my last option was to use Mystery Auction, so I gave it a go and it worked, I got rid of my dead end stock and made far more than if I had sold them seperately (and believe me I tried!) on Ebay.
You have to be cute with your listing though, sorry creative I mean!