It's too bad that contracts go up in smoke whenever people start to become honest about their personal life (like Leroy said). I guess that was just one of Elvis' difficulties - it wasn't at all easy being so famous and he must have been lonely on quite an occasion too.
It's all too easy to tell what Elvis should have done. With today's knowledge he might have been able to stretch his lifespan, but I don't think all the illnesses would have vanished just like that.
It's just that Elvis was a great man (not just in making music) and people should be grateful for it. Leroy, you said it well!