Yakuzaice on 11 November 2011
Double sales from what exactly? I assume week over week, but then you keep talking about Christmas. You also talk about double it's Japanese sales in North America. Japan tends to be much more volatile than the US. Releasing a new color (Ice White also came out the same week as 3Dland) can cause a huge spike. The release of the flare red 3DS more than doubled hardware sales, the Pink 3DS increased sales by about 50%.
The release of NSMB Wii on the same week in 2009 only caused a 42% increase in hardware sales (the DS rose 42% the same week with no notable releases). Of course the Wii was much more established at the time.
Anyways, give some actual numbers, because you seem to be speaking very generally about several different figures.
