I used to drive Bell 206's. Great aircraft, but, at least for Americans, the helicopter job market seldom pays much. That's why I finally made the jump into fixed wing.
IMHO, airplane flying does not really translate into copter skills (instruments notwithstanding), so some (maybe all) employers only look at rotary time.
You might want to ease into rotary if you're really determined to do it; I've known of airline pilots getting part time copter jobs. Personally, I like the rotary realm better in terms of the people and the flying, but it's not a financially viable way to earn a living.