No, of course it all can be perceived as rhetoric to appease the fans, and obviously nobody would ever be honest enough to say "I actually wanted to stay at Real Madrid but they didn't want me and United could afford me" But Di Marias' quotes were from a few years ago. If you saw the BBC interview and saw the look on Falcaos' face when he first entered the changing rooms at Old Trafford, you can see that was real. He was grinning like the proverbial Cheshire cat. Rojo genuinely seems over the moon and is always smiling.
Of course player loyalty is always in questions nowadays, but look at the recent loss of our own Welbeck. Do you believe what he said about Arsenal when he joined? The kind of loyalty shown by players like Giggs, Neville, Scholes and (no matter how he is hated) Gerrard are a dying breed. As long as the lads who signed in the summer play well and are constantly respectful about the club, I don't care if they are only here for the money. Managers can drop players as quickly as players can drop their clubs. I think the only time it becomes an issue is when, like Tevez, they constantly switch clubs then slate the previous club/player/manager/fans and also have no care about switching for rival teams. Could you see Messi leaving Barca for Madrid? Fabregas is a good example of what i'm trying to say. So far he has acted with dignity and respect regarding his switch to Chelsea, and that's after a 3 year absence.