I will say this.
I generally don't like to criticize this site's numbers because
A) Its my favorite website for gameing
B) Its free numbers who MOST of the time are pretty accurate.
But in the case of the Wii its simply overtracked and not just because of what NPD and shipment numbers say but also my own personal data from work. Even after the price cut the Wii has not been selling a significant amount. I'm sure its something that will be addressed however and I'm not gonna whine about it, but the console is not selling what Vgchartz is showing.