im sure there are kids who's parents pay the money just to say their kid goes to a place like that and the kid does not have the skill that you may think he or she has with that IMG tag beside their name.
i also think that an athletic and skilled soccer player can get better faster at a IMG type place because instead of getting 3 hrs a week of soccer you are getting atleast 4 hrs a day.you also get the soccer classroom time going over the different aspects of the game that most kids at any club will not get.a kid at IMG may still not be better skill wise than a player at a club but their knowlege of the game and how to play the game will be better. im sure there is a lot of chalkboard time on positioning at a place like IMG.