As usual, itsallaboutme has it right. The courses offered by Jayhawk are excellent, I know the people that do them personally, and I really don't think you'd find better or more qualified people. It's a labor of love type deal, and the only way to make money is to be an owner operator, if you're paying other people to run it for you, the money it takes to staff a good operator will take the entirety of your profits, and even when you're an owner operator, unless you're just in a favorable situation or place, it's nothing that's going to make you rich. Now, it can be extremely fulfilling, and it's kind of fun to do what you love for a living, but it CAN suck all the fun out of it because it's more of a customer service position than anything else. Yeah it's bowling themed, but it's all about people. There are bowlers that will continue to go to the same chop shop time and again because they like the person running it. May never get anything right for them, but they like the operator. You could be the most competent person in the world, but if you're abrasive, people aren't going to put up with it.
Running a pro shop is really something you do for personal fulfillment and to help others, and if you do it right, you'll probably be in the black, but it's going to cost you a lot of time and money and requires a lot of personal investment, because once you become the "pro shop guy," that's a 24/7 type of deal to really do it RIGHT. That means spending league nights and practice sessions talking to people and offering them advice, that means getting facebook messages and emails at all hours of the day asking about things. It's beyond dollars and cents. I loved it when I was doing it, and I was damn good if I do say so myself, but now that I'm out for the most part, don't know that I'd go back.