I congratulate you on having your own successful affiliate program - It is clear that you have a defined plan and are executing it well.

As it says above, this exercise is targeted at those who are yet to formulate their own plan, but who are keen to get into action immediately. I found this exercise to be "entrepreneurship with training wheels" - a taste of working for yourself without spending months slowly monetizing your blog or website. It's really a motivation and learning exercise - any cash along the way is just a bonus.