Dryaxx said:Look at PSN... Now look at XBL.
That is all.
/thread
Sorry, I couldn't resist.
Anyway, OT: I don't use either online services, so I don't really have much in the way of a visceral understanding of either system. But I would think that there are some costs that Microsoft have to pay in order to host these games on their system. Games like the popular COD would likely be paid for by Microsoft as it is the intellectual product of multiple studios, and having their game played on any system would require some reimbursement since it is very similar to leasing the product to net the profits that Microsoft would gain from using their property as a means to gain profit.
It's very likely that I'm wrong, I don't really know enough about the economics of the system to say anything for certain. I just assumed it would be a similar agreement that movie studios would have with online streaming sites or something similar.