Where are you looking for the VGC attach ratio?
Ah the WW weekly I assume.
Well I could be wrong because the X360 8.1 figure is from NPD.... which is proper sales, whereas the figures from Ninty and MS are shipped... but I was considering I also used shipped for the hardware so it won't make a huge difference. but thinking about it more I am wrong. (because of course many more games sit on shelves than hardware)
Also the NPD figure won't include about 7-8 million of X360 games from those bundled the last two Christmases.... so that will increase the figure by about 0.5 in itself.
The actual ratio I worked out regarding WW 360 ratio about the same as the PS3 one I made is probably avout right.... except for the PS3, all shipped games are included, while for the X360, it is games sold (seperately) in the USA alone. The USA bit gives an advantage to the ratio, but the none bundled and non shelf stock bit likely cancels most if not all the advantage out.
So yes, the WW attach ratio for the X360 is probably around 8ish. Unfortunately we can't be sure unless MS gives out more details.
