I've seen a similar 200+ pile of PS3 (50/50 40Gb and 80Gb) at my local BestBuy. No pile of 360s at all but they have plenty in the shelves.
The funny thing is that 200+ PS3 pile keeps getting rearranged so they must have more in the back.
When I got in the pile was missing 10-15 from the corners and when I left it was a perfect rectangle again.