1. Don't have to listen to patients ramble on-and-on about their problems.
2. Easy to become an employee of a hospital, with less overhead and less day-to-day staffing problems.
3. Reason #1 needs to be mentioned again.
4. Very little charting - compared to other fields. Especially surgical fields.
5. Both fields offer the physician a life. It is possible, even easy, to take a week of vacation without the concern that your patients are all going to die or switch to another doc.
6. Less call.
7. Procedures - and lots of them!
8. Very little chronic managment of patients. (See #1.)