Every club has an owner (although a number of German clubs are owned by the fans). So with the theory in mind that owners get bored and want to move on, surely almost all clubs are on the brink of being in the shit when their owner does one in the immediate future?
"No!" They say?
Really? So why would Sheikh Mansour want to fuck City off? Why would he want to tarnish his name when he's only just started spreading his name, using City to promote his name as a businessman (empire) throughout the world in many different walks of business? Why would he ever risk seeming untrustworthy or unrealiable to future business prospects?
Also; "We will never run out of oil":
http://economics.about.com/cs/macroeconomics/a/run_out_of_oil.htm
and even if we do, he will still be one of the most powerful businessmen (empire) in the world. So it's not like he'll come moving into a council house on the Broomwood near me if the oil runs out (not going to happen) is it?