Never done it. Never will. Got my wife to stop dying hers as well.
It looks nice on some people if it's close to a natural color. Anything else feels attention-grabby and flashy.
Knew a lot of people that dyed theirs constantly during school years and beyond. All I ever saw was them suddenly trying to make it look natural once the places they wanted to work at said nothing bright or non-natural.
Debated doing a touch of gray with a suit on once just to see how attitudes changed. Never bothered.