Yep! I've actually asked this question before to Linda Raschke and her answer was something along these lines: Intelligent investors have multiple income streams. Linda has a trading service that charges a monthly fee and I know for a fact shes a great S&P trader. Why doesn't she just trade and not waste time with other income sources??? She also owns various real estate and other businesses. If you see an opportunity to market your skills and make money, you should always take it because you have no idea when one of those income streams may be stopped by some catastrophic event or just fizzle out. Just like diversification in a portfolio. She trades her system and sells her knowledge. Nothing wrong with that. Take me for example. I make money a few different ways - Programming projects for people - Trading - Computer Repair/Web design - Payout from PureTick.com every month I'm decent at all these things but if I just did one I'd probably get tired of it quickly. I could just drop everything and trade but that's pretty boring. I also think motivated individuals just like to start new projects and see them flourish.