I have to say that some titles seem to be poorly tracked here based on numbers given in that gamasutra article.
Keep in mind just because it says >850k doesn't mean it sold ~850k. For example, NPD had Uncharted 2 at 950k in the US as of december, and the article writer said it has sold at least 100k this year.
AC II might be way off though.
The leaked NPD total for December was ">900k". Of course that came from Anihawk, who the Sonycorps around here seem to want to discredit at every turn. ;)
Also, I don't believe Matthews said it's sold over 100k this year? Where are you getting that?
NPD themselves discredited him but I guess people need something to believe him, even if it's an obvious lie as already stated by NPD themselves.
As far as the 950k in December 2009, that comes from this, from Sony PR themselves:
UNCHARTED 2: Among Thieves has surpassed 1 million units in North America* with more than 950k units reported by NPD in the U.S. since launch
They already pointed this out to him in the GAF thread.
Yeah Motorstorm had the most bundling with PS3's.
Still wonder why Pacific Rift didn't do that well, its 10 times better than motorstorm 1 & with all the bundling motorstorm 1 got they had a userbase ready to buy motorstorm 2.
Because Motorstorm sucked, load times were horrendous and no split screen multiplayer was a killer. The word of mouth did not help that game at all.