Months late, but its been awhile since I came across this thread:
Ice, you're out of your mind. Its ALL about business. The studios won't make a move unless they think it will result in as much profit as possible, equated to as much viewership as possible.
And the ratings don't generally go up and down throughout the season. For the most part, they start strong with preimeres and generally lose viewership throughout the rest of the season (people losing interest, etc). The finale occasionally ratches up extra numbers, but the viewership consistently goes down throughout a season. To minimize that, they're airing it all consecutively, instead of splitting it up with months between, where MUCH, MUCH, MUCH more viewership is lost in the interim.
Despite what lip service the studios give the fans, it has nothing to do with giving the fans what they want (even if they say it does), and everything to do with pleasing studio execs, the accountants, and the advertisers. Airing the seventh season all in one go does all those things. Splitting it up into segments does the opposite of all those things.