On the reseller plan, you get discounts as you add more accounts and you can charge whatever you like for the resold client accounts. How much profit you make depends on how many accounts you signup and what you choose to charge your customers. Some web developers use the reseller plan as part of their overall services and charge to design and maintain the website as well so they have an attractive integrated service. However, resellers also provide all support for their customers while we support the reseller. If you don't want to provide support or want to just make some quick one-time money, then affiliate is the way to go due to its simplicity.