I started riding brakeless because I had a track bike and the fork wasn't drilled. Once I learned how to do it that was it. No going back as long as my knees are good and my bike is light enough to stop fast, and my BB is high enough to allow for skipping. It is about commitment, as the Blue/Red pill poster said. You have to know when to go for it and when to hold back - the same is true of riding with calipers - but when you're brakeless/fixed and you commit, you are really committed. That is what makes it fun.

As I've said before I've wrecked my RB bunches of times, but not my fixie. I think that the brakelessness actually makes me more careful.