Of course, promoting SAN is optional but that is what almost every member does. After all, when you join a high-ticket membership program your primary objective is to sell their courses. Because that is how you can earn a lot of money. And their training focuses on how to drive traffic to your capture pages, attract leads and not so much about how to become an authority in your niche or how to find and sell products in any market you want.
Once you have narrowed down your options to a handful of possibilities, take a look at the merchant or marketers' Web site rankings and traffic. If, for example, you have your choice narrowed down to three computer software e-tailers, you can use Google and Alexa rankings to help you determine which may have a better volume of traffic. While their Web site traffic won't directly help you promote their products, this may tell you which company has a larger customer-base (more traffic). A well-known name that your Web site visitors may be familiar with might encourage them to click the advertising links on your own site.