I owned a fixed gear that a neighbor sold to me, long ago and far away, and I liked it. Nothing particular to it or anything. Then I started reading about fixed gears and how they help with the spinning technique and converted one. Now I like it better than my multispeed bike. It is lighter, it climbs better, and it is just as fast as my multigeared commuter on flats. It is pretty theft proof, and there is not very attractive when parked next to other newer, more expensive, mountain bikes. I let other people ride it and they think that I am from another planet for being able to ride this thing. I like the slow speed control that the fixed gear provides, thing that I learned from my first fixed gear, and the simple looks of the thing makes me very happy.
I dig my gears, but I love my fixed.