Starting out to make money is the greatest mistake in life. Do what you feel you have a flair for doing, and if you are good enough at it, the money will come.
Even the small amount of infamy I have makes me uncomfortable - on a personal level and on a professional level.
I'm always trying to do stuff I haven't done before or challenge myself so I'm not resting on my laurels all of the time because if I just found my little niche and never left it, I'd be pretty boring, I think.