Spoilers... ...so many spoilers... ...all the spoilers... ... I'm not giving anything to Thanos. My boyfriend also liked that idea, that at the end of it all we'd see him watching the sunset before fading away. But as fitting as that would have been, it robs us of whatever (hopefully satisfying) comeuppance he's going to get in the next movie. Also, I'd have to assume that whoever wears the infinity gauntlet has some control over it, meaning that they would be spared any fate/death they didn't want for themselves.