I had to look back to the beginning of this thread, because I couldn't remember if I was going gray last year. Well, I am now! My red hair is now more buff, which I heard would happen. I'm just going with it. It looks fine. I like it. My hair is light, so I don't really notice all the white ones unless I specifically look for them. However, they seem to show up in pictures, so maybe I'm just in denial. 
I plan on being one of those gorgeous old women with long gray hair (well, I can achieve part of that, anyway
). I can't imagine ever coloring my hair, mostly because I'm one of those earthy crunchy no make up types who can't be bothered with grooming. I like the idea of accepting the inevitable. I'm a slacker to the core.
I don't know about coloring, but I wonder, is it possible to stop dyeing in sections, like the way they put in highlights, so you can do it gradually? Or do you have to cut all the dyed stuff off at the color line? That sounds so drastic. I can't help but think of "Twin Peaks", going gray over night.
'02 Eddy Merckx Fuga, Selle An Atomica
'85 Eddy Merckx Professional, Selle An Atomica
'10 Soma Double Cross DC, Selle An Atomica
Slacker on wheels.