These penny auctions are no better than gambling. Since you have no way of knowing when the auction will end or how often you will be outbid you can easily use all your pre-paid bids in vain. In my opinion these sites should be regulated just like casinos, or shut down altogether. Don't waste your time and money, if you are willing to bid in an auction go to e-bay where at least you know the price you are willing to pay and if someone outbids you its no loss.