^ Agreed! If there is no market expansion then yeah it would be difficult to achieve those numbers.
With market expansion, it could, should and would easily out pace the 24 million a year mark.
Please remember, 24 million a year equates to just 2 million a month...
If Nintendo have already upped production to 1.5 million a month barely several months into it's life and still selling out (taking into consideration they are selling roughly 1.1 mil a month and stocking the other 400k for christmas-which if they aren't will be suicide), upping to 2 million a month, even 2.5 - 3 million a month isn't out of the question.
It's me... no really, it IS me!!!