It kinda is when you take everything into consideration. United where the only one for him, Liverpool got someone else, Arsenal has different targets and none of the clubs abroad were in for him. Now, that could've all change if the asking price was a bit lower, like 40m. In the end, I don't really care as long as the players is of certain quality.
I don't think it's like that. Chelsea wanted something ridiculous, only when United left the table they started to come to their senses. Is he overpaid? I'd say so. But massively? Not really. There's a reason why he was first choice for both Liverpool and Arsenal, but both were priced out because United were willing to pay the premium. If he was a bit cheaper, a lot more clubs would be interested.