Man, you should check this BBC article.
Sheikh Mansour, a member of Abu Dhabi royalty, is the purported real power behind ADUG. Money is nothing to this guy. The supposed 200m pounds to buy City is a drop in this guy's oil bucket. The article says if the price of oil goes up just $1, this guys gets an extra $500m (250m pounds) _that day_! And his family's combined wealth is estimated at US$1 TRILLION (yes, with a T, a thousand billion, 500 billion pounds). Abramovich can suck his balls!
Also, yeah, to salmacis's point, Liverpool looks to be playing catch-up now.
Per the article in my previous comment, ADUG had considered Arsenal (shareholders won't sell), Newcastle (400m valuation too high) and Liverpool (expenditure for new stadium scared them off), in addition to Man City.