Low Bid Auction?

Sounds odd eh? I'm not quite sure I get how this works yet. You find a prize you like at bid4prizes and bid on it just as you would at a regular auction. The difference is that with bid4prizes, the low bid wins, as long as it's the lowest 'unique' bid. That's the catch. You can bid lowest, but it must not be a bid that someone else has already bid.
Once you put your bid in, bid4prizes will tell you whether you are low, high, unique or duplicate and then it's your job to figure out how to bid next. Sounds easy, but somehow I don't think it's quite THAT easy. I would say that since the thing is kinda new, there won't be too many bidding right now. Not like the crazy amount of people bidding on eBay at least.