ALL marioboys bought SMG and Wii? Or speculations made on SMG and SMS sales

[Coglestop]

CrazzyMan said:

@Rath, games sell 80% of it LTD sales in first 12-16 weeks.
Unless, not all fans bought system, where that game is released(looks like not in this case).

Normally, that is true, but lately Nintendo has been bucking the trend.  New Super Mario Bros only sold around 60% of its CURRENT installed base in Japan by 12 weeks, and is still selling well, given that the game has been out for a year and a half(11k copies last week in Japan).  Wii Sports and Brain Training charts are almost linear, with sales remaining rather steady for months on end.

Looking at worldwide sales, SMG has currently sold MORE copies worldwide at 9 weeks than New Super Mario Bros. did(NSB is sitting at just under 13mln sold).  At the time of launch, the DS had roughly the same installed base as the Wii enjoys now.  Granted, NSMB had a staggered release over a two month period, which skews things somewhat, but not THAT much.