Aaron Greenberg's comments on NPD.
"Microsoft’s Aaron Greenberg has posted a response to the recently released December 2009 NPD sales results. He stated that the Xbox 360 had a great year in 2009 with it outselling the Playstation 3 in addition to leading third-party software sales and software attach ratio (a record 8.8). The Xbox 360 generated $4.8 billion in total consumer spending (hardware, software and accessories sales combined). Here is his full statement on his personal Twitter page:
'NPD shows great 2009 results for #Xbox360 $4.8B in consumer spend, outsold the PS3, led in 3rd party SW & record 8.8 SW attach'
According to the NPD, the Xbox 360 sold 1.31 million units for December in the Untied States. Call of Duty: Modern Warfare 2 (1.63 million copies sold), Assassin’s Creed II (783,100 copies sold) and Left 4 Dead 2 (728,500 copies sold) all managed to chart in the top ten best-selling games of the month."
http://www.examiner.com/examiner/x-6894-Video-Game-News-Examiner~y2010m1d14-Aaron-Greenberg-responds-to-December-NPD-results