I just received news that one of my students (well, ex-student now, I suppose) just got his first game industry job as a designer. That makes two success stories total. Given how difficult it is to find an entry-level game design job, this makes me feel fulfilled in exactly the way I was hoping to be when I first became a teacher.
Interestingly, the two students who are now working as game designers were also the only two students of mine who attended GDC this year. I don't believe this is a coincidence at all. I tell all of my students that GDC is pretty much a mandatory step for anyone who wants to "break in", and now I have stronger evidence than just my own say-so.
Much as I'd love to take total credit for being such a great teacher, my students this year were pretty amazing. All I did was point them in the right direction, but they did all the legwork to reach their destinations.
For those unfamiliar with the terms Naches and Kvell, a description can be found here, on page 6 (the rest of the document is well worth reading too, especially if you're a game design student).