I think it's a very personal choice. Unfortunately, there IS a double standard when it comes to greying, and that is that men who have salt and pepper hair are seen as "sophisticated", "elegant", "sexy", and "worldly", such as George Clooney. Women who try that are seen as "unkempt", "matronly", or "neglected". My dad had salt and pepper hair when my mom met him and she loved it. He looked like Paul Newman, and he had many women after him...more than he did when his whole head was dark brown. Speaking of salt and pepper, I have seen earlier pictures of George Clooney where he was younger and had dark hair, and he didn't look that great. He looks so much more attractive and sexy with his silver streaks! I do wish this double standard as to who is "allowed" to grey would end though!
I remember seeing a celebrity whose wife was beautiful, she had the face of a model, but had some silver streaks in her hair. They were at the Grammys. Unfortunately, I cannot remember her name, or I would mention her. Anyway, she was in a picture slideshow about outfits worn to the Grammys, but 97% of the comments were off-topic and from men who were saying "She is in her 30s? That ugly grey hair makes her look like a grandma" "Lady, dye your hair, you're aging yourself with that hair" or "Gosh, she looks perfect from the neck down, and then there is that grey hair. Not sexy". I don't know how old the commentators were, but it seems most men don't enjoy grey hair on the first impression. Mind you, this woman had no flaws in her face (no wrinkles, no crow's feet) and had a youthful face, she just has some silver streaks in her black hair, but that alone was enough to make people think she was older.
I do dye my hair, as I have a baby face and no wrinkles, so the grey hair would throw people off (I get it on my sideburns, and the under layers on my hair so it'd be visible if I did a ponytail or a half-up half-down style, and I have thick streaks on the middle upper layer of the crown, especially when parted down the middle, whereas the rest of my hair is dark, maybe I wouldn't mind if it had spread more evenly). I don't like the color of my hair anyway (dull, mousy brown), so it's not an inconvenience, plus I have been dying my hair since I was about 15 or 16, although now I wear a color more similar to my own (dark cherry brown).
I dye it at home, once every 3 months or so, or when my greys are about 1-2 inches long, I am not obsessive like my co-workers who dye their hair every 2-3 weeks. This is an economical option for me, and it is easy and quick, the whole thing takes less than an hour, which is less time than it takes in the salon. It goes on like a glaze. Actually, a clear glossy glaze might be good for you, it will make your hair shine, or so I have been told, and won't change the color. My greys come in wild and frizzy, and rather dull, but I don't know how yours are.
I do like grey hair on men and it actually causes me to turn my head to look when one walks by, more than I would for a non-greying man, and I do find some women look attractive with streaks, but on me, I don't think it looks good, even though I have light eyes and thick, dark eyebrows. Maybe it's because I feel it washes me out and I am already quite pale. I do like that my dye catches an eggplant like color on my greys whereas the rest looks auburn, so it gives me some free, edgy rocker-chic highlights with the rest of my dyed hair. Saves me from spending $100+ on highlights, so I can't wait to get more of those greys so they will look like eggplant purple highlights without making a hole in my pocket.
Do whatever makes you happy, as long as you're comfortable, you will exude confidence and that, my friend, is sexier than any hair dye or other "anti-aging" solution/product :)
