Funny story.
We've also had precisely one Wii returned since the launch last November. The Wii was returned as defective by a very fat, unkempt child who looked angry and stubborn and most of us immediately suspected he simply didn't know how to properly connect the sensor bar (which we suggested to him, but he'd have none of it).
So I hooked up the Wii and tried bowling, and as expected, it worked like a charm. More interesting, though, was the Wii remote: it had Cheetoh stains -- tons and tons of fat-little-boy Cheetoh stains. It was practically solid orange. We got a new Wii remote, put it in the box, and resold it. We informed the customer that it had been used, but they didn't mind since they managed to walk into a store and buy a Wii and we told them they could return it if something didn't work.
The PS3 is hard to gauge, because we had a bunch of (presumably) failed Ebay attempts when the thing launched. January-February, we returned almost as many as we sold -- say, 3-4 returns a month, against 6-7 sales. Since March, we have recieved no returns.
We recieve about 1 360 returned every two months.
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