Mario Kart Wii: Undeserving sales

[Galaki]

Kenology said:

But wasn't it long past 20 million before it was bundled though?  I believe it was. 

So I don't think bundling (in one region?) is the main reason why it sold so much.  It sold because it's a great game.

It was some 23-24 millions before it started bundling with the Wii.