the PS2 and PS1 was casual too i think they have both sold moe than the Wii in answer to someone saying Wii hit the casual first/alone
it is hard right now to see the WiiU marios hitting 25m,we are not talking handhelds of course for this thread,what did GC/N64 marios hit 10m?
the nes/snes dominated their game era
as of now i'll give the WiiU big hitters 12m,maybe some online RPG can smash it out the park but who knows