I think he made the right decision. He could've carried on in Europe but, echoing Suchfriends' point, the competition here is now so intense that unless you're among the top tier in your position in the world, you'll always be just another very good player. Good luck to him and, as has already been said, a great move for the MLS.
I only hope being closer to home doesn't inspire him to revive his musical interests
http://www.youtube.com/watch?v=K6Di8QT98Zk