reason #1 - I knew that this was the ONLY time in my life that I would cry at that scene, so I just said "To hell with it, I'll let myself cry, because Lord knows I'll be walking out of this theater pissed."
reason #2 - Obi-Wan's dialogue. His words were what made me sad. Not seeing Anakin burst into flames (I was more like, "oh, so that is how he got all scarred. Makes sense."
I couldn't care less about Anakin. I really couldn't. Most of the time, I just wanted to kick him. Obi-Wan was the only, ONLY rediemable character. He is the only freakin' character I gave a flying rat's ass about.
The rest of the PT cast...*shrug* Who were they again?
In the words of my father when he saw the movie, "In 1977, Star Wars was a jaw dropping movie that left me stunned. This time, I just kept looking at my watch wondering when it was going to be over."