Sorry guys, but I find it rather stupid to compare Halo to MKWii. My mom can play MKWii. My mom CANT play Halo. My little sis can play MKWii. My little sis CANT play HALO (though she wants it badly).
What's the point? (other than self-satisfying comments)
Please, someone enlighten me...

Wii is in the title and every copy comes with a wii wheel you can use your mii for all intensive purposes this a adaption of MK as a Wii branded game.

I think it will break 20M life time.

it is simple, halo 3 had more advertising then Jesus, you would have to be living under a rock not to see a halo commercial, not to mention some TV channel dedicated a whole show to halo, it sold faster than a hooker in a comic convention, it set the bar for all the games in this gen to reach, and now mario kart has almost reached it.

Great.

Fixed for ya. You are officially enlightened now.

You playing Halo with your buddies online after you've finished your homework is just as casual as your mom playing MKWii after she finished cooking your dinner.

I'm surprised at home much ass this game has kicked. Remember it's pre-launch hype? Or lack there of? It was called ugly, a downgrade, all the sites were saying it was a step backwards, it was wii-ified, given a wheel as a gimmick, made casual. It had considerable anti-hype. Then it launched got decent reviews and has become a juggernaut. I wonder how many it will go on to sell?

Considering the much larger userbase, an accessory bundled with the game and its for everyone it was expected

Wow, im really impressed! I always thought SSBB was going to be the Wii juggernaut game, turns out the less impressive MKWii gets the gold. The fact that it will outsell Halo 3 is imcredible.

PS2 version guaranteed, depending on legs after a couple years it could most likely go on to pass total combined sales since the Wii userbase is easily going to increase 400%+.