Bono is ok if it is ok with him, I don't know if he's doing anything with his hair or not (I don't think so, by the way, apart from dying it) but it is HIS hair and HIS life and he has much more dignity and love in one of his hairs than many in their whole person. That said, I wouldn't go boasting about what I'm gonna do when I get old, you never know....
I'm sorry if I sound too serious, it's just I don't like people judging other people this way, it makes me feel blue.
now all of the Bono impersonators should get their hair transplanted too.... oh! who knows, part of the JT mane might be saved so all the other Bonos in the world can use his hair