I don't have a problem with OC, but I wouldn't ever do it. As far as the "crime deterrent" argument goes, my thought is this: I'm in a gas station check out line. Bad gun walks in with a gun in his pocket to rob the place. He sees the gun on my hip and thinks to himself "Oh, I'll just shoot him first."
That said, I absolutely believe in the right to OC and say "good on ya" to those of you that can/do practice. Unfortunately, my state is becoming more and more commified.