I'm a bit new to having long hair (last cut in december '05), the first year was a nightmare, and because all of my ID had to be renewed in that year, all of my cards make me look like a mushroom. luckily it reached the perfect length to tie back for my exams. because of my hair I get alot of complaints from idiots, mainly wearing fake burberry, well better flowing in the wind than covered in hair gel (reconstituted McFlurry).
I can't imagine cutting my hair (for one, no other style suits me), but then again people have very different types of hair which dictate what they can and can't do with it. one size never fits all.
hope you get as much enjoyment from your hair as you can