Mine doesn't grow fast at all. I started growing it out over 10 years ago, and it's barely half-way down my back when it's wet and straight (it's normally curly, which I hate).
Edit: And some of us have to grow our hair out as quick as we can before we go bald.
mine was an Xflie....it was a nightmare to get it to my shoulders, but from then on, it was just like magic....suddenly I had it all there...
I have to cut the ends soon though!!!