The bigger they get, the easier it is to make a profit. If they are in it for 5% gross profit and they sell 10,000 of these, $5 million gross profit. Doesn't mean that they made money. It's all a numbers game. The other things that are higher margin that they sell with it at time of sale makes them profitable. It's merchandising 101: put low margin items in back of store. If a customer walks through store and buys a QT of oil and nothing else, you lost money. If they buy an air freshener, you made money.