great logic
Gamecube was at 14.68 million after 143 weeks on the market which is 68% of its lifetime sales (21.5 million). Wii is currently at 52.5 million after 143 weeks. Hence, I predict Wii will sell 77.2 million units in its life time.
So the final sales order for this gen is 360 (since it's PS3+1 according to OP) > PS3 (100 million) > Wii (77.2 million)
MikeB predicts that the PS3 will sell about 140 million units by the end of 2016 and triple the amount of 360s in the long run.







