The folks at Above the Law (and perhaps elsewhere) can’t understand the passion that would lead someone to give up a lucrative career to follow a dream. However, I’ve always felt that one should follow one’s passion – which I’ve done in my career. If you are in your chosen field just for the money, you won’t be able to do your best, and you won’t enjoy your work.
Follow your passion, wherever it goes: I’ve been fortunate to follow my passion into a lucrative field. Nathan, for his part, seems to have taken his passion to the next level and is now an independent artist.
UPDATE: Over at the always interesting hackaday.com, just a few days ago, there was an article about self-propelled Lego NXT projects; I especially liked the one inside the wheels.