i can assure you most of the time it all comes down to money if they wont join united.... if ure a top class player and want to come to the premiership surely you would come to the most successfull team, if you have an international collegue or have worked for the manager before at one of the top premiership clubs then maybe you would join them but if not and u dont join united then its for the money, because city offered you more aka yaya toure, aguero, tevez, barry, nasri, silva all went to city for the money... u wouldnt have seen them there 3 or 4 years ago.