When the Glazers took over United, they used the club as the source for their loan payments. So the money they owe the bank for the loan they used to buy our club comes out of our pockets. You remember when we sold Ronaldo for 80 million? Only about £30 million went to us and the rest went to the repayment of their loan. May not seem like much but it's still bad that we haven't received the majority of the transfer fee. Sure we've been able to "pretty much but anyone we want" but that's only because they haven't imposed a transfer restriction on us yet... But just you wait and see.
May seem like I'm having a rant but trust me, in the long term it's going to have a big effect on us. Although I do admit we'll still be richer than you