Because he's Batman.
What? Oh, you wanted more of an explanation than that? Well, while the debate of who’s better, Batman or Spider-Man, would be a heated one I’m sure, that’s not quite what I had in mind today. I’m biased when it comes to the Caped Crusader but one area I’m almost one hundred percent certain Batman will wind up on top (trying...to...resist...the...obvious...joke), is stage shows.
Read about the Batman Live - the World Arena Tour and why it's far superior to Spider-Man: Turn Off the Dark in this week's Hey, That's My Cape! at Newsarama.