I fully expected this to be a photo-dominated thread
I wasn't a big fan of the Vertigo hair either. It made him look older than necessary. This is the most flattering picture I've seen of Vertigo hair, but I think it's all in the head tilt.
This is weird, but Bono's adventures in hair kind of remind me of Arnold Schwarzenegger's. I'd have to dig for pictures, but both Bono and Arnold have experienced times of puffy fro-ness, long lankiness, dyed darkness, and dyed lightness. Arnold's got more than a decade on Bono, and he's not looking too graceful in the light browns he's using these days. I'm glad Bono has gone a littler darker lately.