Was MS Wrong When They Claimed The #1 Spot For HW Sales WW?

[DirtyP2002]

Okay we know MS sold more than 66 million units and people here just don't accpet to believe this number and say they were stuffing the channels.
This is a serious question: How can you actually "stuff the channels?" Do you force retailer to buy 360s, even though they don't think to sell them?

 

Thanks