M$ msut have some pretty solid data to validate it's claim of 3-to-1 ratio, and 120k off seems a bit too much to just wag that. Also, they are reporting an install base of 25 million, so I'm not sure how they are coming up with that figure...
"We entered into the Black Friday sales period with cautious optimism, knowing that dollar for dollar, Xbox 360 offers more social entertainment value than any other console on the market," said Don Mattrick, senior vice president of the Interactive Entertainment Business at Microsoft. "Record Black Friday sales in the U.S., coupled with our existing global install base of 25 million and an online community of more than 14 million Xbox LIVE members, have laid the groundwork for continued global sales momentum in 2009."
http://xbox360.gamespy.com/articles/934/934783p1.html
"...You can't kill ideas with a sword, and you can't sink belief structures with a broadside. You defeat them by making them change..."
- From By Schism Rent Asunder
