I believe that is key. Finding what truly works for you.

Kudos to SkyHigh, and TonyMontana for finding what they enjoy, and what makes them happy. I've also had conversations with pilots, both major and regional level, who love their jobs. I think you can look at any profession/career, and you will find people who love, and hate it.

You are right ... people leave all careers, all of the time, seeking something else, because what they did, isn't what they thought it would be.