I gave a few small courses (of approx 90 minutes, about SAS) to groups of people at work - and it was fun. Figured that ultimately the money wouldn't be as good as sticking with programming. Also realised later what it's like being a student in a course where the instructor is just teaching from the book and has no idea what he's teaching - I figured I'd not be able to know every subject I'd probably end up teaching, and wasn't at all keen on that.
Apart from that, international pop stardom still awaits :)