NPD Analysis from Gamasutra - 3 important points

[Hyruken]

America has a over 10 attach rate for the 360 so i call those numbers bogus simply because that would mean a drop of 6.5, not very likely, plus it would also mean 2008 was the 360's lowest selling software year which again is bogus as we know it was their best year. So the numbers don't quite add up.