There were only a thousand of these made for an e3 presentation by Nintendo, they are worth $500-$1000 depending on its grade mark, unfortunately this auction seems to be fake :(. Now more about the e3 presentation, each viewer got one with a ds they viewed it on while it was simultaneously being played on the big screen. The viewers could keep the preview or could put in their recycle bin that they had, and no they had to return the ds lol. So that's a little education for u guys:)