There is a diff between a owner and an employee and you are stretching my example a little. Just because you love books doesn't mean you know jack squat about running a bookstore. You hire business people and sales persons to run a store... If they are good and make sound business decisions, they really don't even need to know ahead of time what they are selling to be successful. If you hire the hobby expert, they may know a lot of hobby answers, but do they have a clue about margins, inventory management, marketing, human resources? Probably not. This would make them a very poor person to run a hobby store. The two are not mutually exclusive, but a businessman makes business go. That's all I was saying.