You and me both. I shaved my head once. This had a couple of drawbacks:
1) Many of the hairs that I shaved were in the telegen phase and were just waiting to drop off so when it grew back in it was thinner than ever.
2) I am the whitest white boy in the world and so I just looked like a refugee from a concentration camp or a P.O.W.
Shaving is the answer for some guys, but not for me. Don't let anyone tell you its about your physical stature either. I have been lifting for 8 years. Even though I am not all huge, I am definitely fit and a shaved head just looks stupid on me.