That is a GREAT question. First, what everyone needs to know is that although someof the alleged Clickbank Guru's show screenshots of their earnings in the thousands per month, what they don't tell you is how many thousands per month they spend to produce that.
I could easily spend $20,000 and drive traffic to affiliate sites and earn $21,000, but that is only $1,000 profit. I would rather show you how to build an affiliate marketing business through other means, so when you make money it is profit, not the difference bewteen what you spend in advertising and what you earn. Not to mention, a certain percentage of those sales will request refunds and cut into your profits. The graphs that are shown only show sales, not returns.
To learn more about affiliate marketing through Clickbank, visit http://www.cbprofitsecrets.com