Why do X360 exclusives sell more than PS3 exclusives?

[Andrespetmonkey]

d21lewis said:
So Sony "having more exclusives" being the cause it pure bullshit.  

I wouldn't call it bullshit. Sony having more AAA exclusives means their marketing budget is shared between more games, which either means their games get less money as a whole or some games get a lot less so another can get a lot more. Now consider how much both companies can afford to spend. 

I don't know how far I agree with the people who say their own franchises compete with eachother, maybe a few games might, but I think the factor above is far more substancial. 

The rest is spot on though imo :)