I really don't know anything about the cost of various programs at IMG. However, they seem to make sure their most talented kids attend PG events. sometimes these are kids that we have seen before they attended IMG And then again during or after attending IMG. It is clearly obvious that in nearly every case, these players have improved and in some cases they have improved greatly.
This is not meant to be an endorsement of any kind. It's simply the truth FWIW. Once again I know nothing about cost, only know what we have seen. Based on that, it sure appears that they know what they're doing when it comes to development.