One, I've come to realize that while I probably could fly enough to keep it current, at least most of the time, I simply do not fly enough to stay proficient at it, which makes it not very useful. Two, most of the instrument weather around here (Southwest USA) tends to be thunderstorms or icing, and I don't want anything to do with those anyhow. If I lived in Portland or Seattle it might be different. And three, not having it actually makes some decision making easier. Situations where I might talk myself into the idea that a trip is fine with a (marginally proficient at best) IR just become an easy no-go. Safer, if I'm not going to practice with it frequently.