The salary and teacher vs. Administrator disucssion between you and MW. My dad taught for about 15 years then was a vice-principal and principle for about 20 before he retired at 60. Kind of like you he never really had a desire to administrate early in his career but he found the extra pay and desire to get out of the classroon too tempting.
I am guessing he also liked the idea of being in a better position to help out and the additional authority aspect of administration as well.
You may change your mind some day.