My decision to let my gray out was that my supervisor and my boss both (women) are gray - the big boss has white choppy hair, and the supervisor has long (to mid-back) thick platinum hair. Mine looks like highlights and I am letting my hair grow long at this point - I like not having to mess with color. Although I was thinking about getting lowlights put in - in a reverse to the white - in dark brown or black. That would be so cool!