Items a put up for auction one at a time. The user purchases “bids” for $1 each. A clock counts down to the end of the auction. Everytime the user bids, the price to the item is increased by 1 cent and :30 more seconds are added to the clock.
A MacBook pro was auctioned and sold for $50. But the company made $1 per bid, which means, at 1 cent increase per bid, the company made $5000 on that one item.