There are many reasons. It is very important that you attach value to the course. By sending in the money each week, it is a visual and physical reminder of your commitment. Charles Haanel found this to be the most effective way to do it. Also, many people find an upfront cost for the entire cost can be a burden. We want it to be available to anyone regardless of their means. Also, if at any time you feel this course is not right for you, then you have only paid for what you’ve used.