Also, since his initial order was only 80 - 280x's. He should limit 2 per person when the store opens, until he gets more. Otherwise, the big dog IPO's will clean house.
Actually, there's a 1 GPU limit according to the store page: http://www.gpucoin.net/store.html. That's just per day though, but at least it would prevent the big spenders from emptying the stocks instantly.
If he sets a 1 GPU daily limit. He should charge shipping per card per day and not combine all orders within a week or so and ship them out at once. This will limit the big dogs. He will also profit not only on the cards but on the shipping.
