Importance of a Pencil?

I just use mechanical pencils. I like the feel of them for some reason. And I love it when the lead is fresh and sharp. I just get a euphoric feeling when some of the lead from a fresh piece chips off a little. I don't know really how to explain the breaking off of the lead. Hmm... Well let's say you're using a new piece and you start writing with it. Some of the new lead may break off as a few... powdery(?) pieces.

I saw colored leads before. Green, red, blue. Those things sucked so damn bad; they broke the moment you pressed them onto the paper.