Here's reason 4,382:
A group of dedicated Hurricane Sandy volunteers—all of them teenagers who worked with the New York Police Athletic League back in October—were treated yesterday to an early screening of Iron Man 3. None other than Mr. Tony fucking Stark, Robert Downey, Jr., showed up unannounced. Did he jetpack in and give a speech on the importance of capitalism? Nope. He just wanted to thank the kids.
From Contact Music:
He told the crowd, "I just want to say thank you to the... Police Athletic League and all of you folks. I know you're all here because you've been doing something special in the five boroughs, for this great city.
"You're the future of the nation. I guarantee if you keep doing the right thing, you're going to be running the joint in a minute."
Downey, Jr. posed for photos with his star-struck fans, and told a reporter for the New York Daily News, "Of course (the visit means a lot as)... it's my hometown. Everywhere we drive, I have a memory of playing Frisbee in front of that office building or trying to sneak into the back door of a Rocky Horror Picture Show midnight showing, because I knew someone who was working concessions... Coming back here reminds me of my origins."