like pisobid.com!
but, if not many people bid and for example I
win an XBOX 360 for just 0.001 BTC you would be out of business in no time
Yes that's the risk, which is why many penny auction sites ARE scams because they can't afford to give away a $500 product for pennies. Thats why my site is mostly filled with used products, every now an then I post new inexpensive stuff, but i guess my offering arent attractive enought to generate interest.