I'm torn, personally.
Normally I am not a man that follows NBA closely, but this summer for free agency did catch my eye for the sole purpose of seeing what LeBron James would do. The day that the Heat signed Chris Bosh to join the already immense talent of Dwayne Wade, I knew instantly James would quickly follow. Not because of the money and no state income tax, but because he wants to win a championship. Many people think it is about the money, but I tend to think otherwise. If it was, I believe he wouldn't have been so easy to give up the highest possible contract based on the salary cap. To a degree it may have had an influence, but I truly believe winning is his main goal.
That being said, lightning doesn't strike twice, especially in this league. The first Big 3 in Boston was able to meld extremely well, and the reason for that was it wasn't based around a star. Sure Paul Pierce was their best player, but he didn't carry himself like the big man on campus so to speak, so Kevin Garnett and Ray Allen were more easily accepted and were able to work together extremely well. Miami, on the other hand, has been somewhat of a one-man show as well since winning their championship a few years back. This is and will always be Dwayne Wade's team, and LeBron's personality may have negative reactions to that. Plus all the bad karma and the way he left Cleveland, I think, will catch up to him. The Cavaliers owner was right in saying that he betrayed the city (however, I still think the letter he sent in general was foolish and not well thought out to say the least).
I want LeBron to win a championship, because he definitely deserves one, especially coming so close to winning one in a city that has been an afterthought in sports for years, but if he continues to carry himself the way he has, it won't happen, and if it does, no one will like him for it. Booyah is right, success doesn't come from selfishness, and I would hate to see James become the new model for that idea.