Maybe he means GTA4 could top 16 if it could have a Wii version xD lol
He talks if 10 millions were poor sales for Wii fit
I think it could end with 2-2.5 lifetime on Japan, 2-5 depending the marketing NOA does in America and 3-4 Europe
Also if starts appearing Wii balance board Wii ware games, it support could be going to the roof

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