Hi Steve!
It's pretty interesting learning you are training in kempo, because I am too, and I am currently an orange belt too.
(I have a belt advancement test on wednesday.)
Sometimes I am sitting at home about an hour before my class thinking "I just don't want to go today", but I always end up going anyways. Its a habit now, like you said. As I progress farther and farther into this martial art it has become more of a habit, but I know I am learning something useful (or if not, getting a good workout).