1. Helping sick people is very satisfying. They thank you all the time.
2. Finding cancer and other diseases in time to cure them makes you feel worthwhile.
3. Ongoing relationships with patients teach you a lot about yourself, and are inherently satisfying.
4. You always have a job because you are self-employed.
5. You are the boss. You can set your own hours, hire your own staff, and change your practice the way one would change an ongoing work of art.