I decided to just let my hair be natural, at least for now. However, I do reserve the right to color my hair if I so wish. ;-) The grays really don't bother me at the moment!
I was talking with my mom a while back and she told me a story of her mom, and how when my mom was a teenager, my grandma ruined an outfit with semi-permanent hair dye because it all rubbed off on her collar. After that, my grandma decided to just let her hair be. I always loved my grandma's hair, especially when she was older. It was so white and pretty! I think, knowing what a beautiful person my grandma was (inside and out), and knowing that she was confident enough to not dye her hair, has helped me make the decision to not dye.
I found this interesting blog post: The History of Hair Color. Looks like women have been dying their hair for thousands and thousands of years. But that doesn't mean I have to. :D