How Much Will Wii U Sell on Week Ending June 7th?

[jlmurph2]

mZuzek said:

jlmurph2 said:

NPD is US only

Thanks, that settles it for software sales.

Still... NPD thread states Wii U sold 61k in May and PS Vita sold 56k. However, the tables within the thread state 110k for the Wii U and 11k for the PS Vita.
There's some sort of difference there between "NPD numbers" and "VGC numbers", what exactly does all of this mean?
(I'm starting to feel bad about this)

It means VGChartz has some bad estimations/sources