Ugh. A law school classmate of mine was grey before she was 30. She didn't color then, and I haven't seen her in person since her wedding about five years after we graduated. I just googled out of curiosity. Yep, she colors now. 
Maybe you could do a temporary color to try it back on again - see how you feel about it at this point in your life - then get a "real" salon color if you want to stay with it?
You can color and STILL get ticked off by society, you know.
Speed comes from what you put behind you. - Judi Ketteler