because they are pretty damn good looking, and also i would then be able to wear the cool crank bros t shirt and not be a complete poser (just a partial poser like i am now).
sadly, the pedals kinda aren't as good as they should be. the bearings feel like they use sand and gravel, they were crunchy. not cool at all.
sorta bummed about that. damn crank bros, you let me down.