Vulcandude,
Like you I realise Elvis was very ill. So many people still not know that and only think he messed up his life by taking drugs or misused prescribed drugs.
Over the years of being an elvisfan and meeting "people" who knew him and listening carefully to their stories I know enough.
He led us believe nothing was wrong but Elvis was in a very poor shape towards the end of his life healthwise. But he choosed to let God decide and he wouldn't have surgery because he was not 100 percent sure he would be better afterwards. Doctors could not guarantee.
Plus we must not forget Elvis was emotionally devastated.
It began with the loss of his mother, who really was his friend and who he could trust totally.
Then he found that same feeling of trust and having back a family with Priscilla and later on with the birth of his precious Lisa.
Then Pris decided to leave him and and she took Lisa with her and Elvis was never the same again.
I think it was a combination. Emotionally Pain, Lonliness and illness.
That killed him.
Was he a happy man????
I choose to believe he was "most of the time."
He loved performing.
He loved us the fans.
He became someone he perhaps never dreamt of becoming that himself ,being a young and very poor kid.
He was loved, adored.
He was good looking and lived in beautiful houses and drove beautiful cars and had beautiful girlfriends. But of course that is not THE most important values in life.
I think being healthy and having a caring family is the most important thing in the world for every one and unfortunately THAT was exactly what he missed.
I think Elvis was a beautiful person inside and outside and I think he made a lot of wrong choices too but felt to often commited to people.
Few people did know the real Elvis inside. And few seemed to be intrested in him as a human in the first place. I think his religious search was never really comprehended nor appreciated by those who lived with him.
They were there for the money and the fame and the name and that is too bad.
There were a lot of descisions he should have taken otherwise.
But it is over and done.
When I think about his life and the tragic end it often makes me very sad.
When I stood at his grave. I felt so sad for what "could have been "but never was.
I revolted. Why did he have to die being so young.

I saw the horses and the pool surrounding his grave and I could easily imagine him still be there and enjoying life and as soon I fully realised he was there under that ground forever I felt devastated. It was something I never want experience again and therefore I will never go back to Graceland again neither.
I can only hope he is now happy with his family, finally I would say.
Riley