Check out this one:http://www.mokimarket.com/auction_details/308
Winner paid $0.07 for a single bitcoin
That's the thing about penny auction, it's really random. Sometimes the sellers wins big and sometimes the bidders do. But there are several strategies that professional bidders use; I mention some here:https://bitcointalk.org/index.php?topic=53163.0
There are two things that make my site different than any other penny auction site you will see
1) Anyone can create a penny auction for free, so you can be a bidder or seller
2) You don't every need to pay us any money or bitcoins to play, you can post (virtual, new or used) items to earn 100% credits generated from that auction and then use those credits to bid.
If it was a given that you could make money posting penny auctions, everyone would be doing (2)