Well it is the fastest selling system ever, what did you expect? Less than 1.8M? Okay... Yeah, so did I.
Still, its 2008 is 50% higher than the highest Ps2 year, and 33% higher than the highest Wii year (so far).
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS