Maybe, but to which extend ? And do Hexic (which indeed, is not a system seller, lol) price is also included in the X360 price ?
Wiisport isen't a temporary bundle (like usually), it's "included" in the console.
The Wii is still quite young, but imagine sales remain steady in the long run (5-6 years)... Wiisport will be in chart every month during the all life span of the console ? Even in period where there are not big releases on the Wii but the Wii is still selling (it's already happened), Wii sport will appear in games sales charts and give a wrong view of the market at this precise moment.
What bother me at this point is that this could happen with any free games coming out on any machine. Just imagine the PC charts including Free Cell... Yep, All time best seller, every month on top of the charts because there are roughtly 7 millions PC sold each month across the world... But that would be irrelevant.
