i keep my hair short too, only because my hair is unaturally thick, and every time i have tried to grow it out it becomes an annoying mess that is impossible to style while in the 3- 10 inch range.
i like to keep it down with clippers on a '1' setting, during the summer, besides i LOVE it when my hair is really short (feels smoother) and my wife rubs the top of my head when i am going down on her.