He has been a drama queen, and if he wanted to keep playing he should have never had his crying press conference and "retired."
With that said, if an athlete wants to keep playing, I don't have any qualms with it. Keep playing. He's the one on the court or field or what have you, not me. Plus, when given the opportunity to play a freaking sport that you love, and make a few extra million while you are at it.. would most people decline?? He's playing a game! I know a lot of people not in position to do so, sitting at home pulling a 9-5, would say "sure, I'd go out on top"... not so sure that would really happen if I was given the opportunity though.
These guys aren't even 40, which is old in the world of sports... but a lot of people at 40 aren't going to be worn down, content, and want to settle down on a ranch watching the cows. Still got some life in them. Just my opinion.