I think the lesson here is that making money on the internet is greatly facilitated when other people are willing to pay irrationally large amounts of money for what you're selling. Product quality may have played a role in this story, but it sure sounds like the critical step was recognizing the ridiculous inefficiency that existed in the market for eyeballs (i.e. paying $3 for something acquired for $0.10)
What margins like these don't take into account is the years of work that came before them.
In my answers to Neil, I tried to keep my explanations simple. But I don't mean to imply that I found a way to turn nickles into dollars by salesmanship alone.
Thanks for bringing this up timr.
I am teasing the OP a little bit, because the comment that "execution" was responsible for your success is basically useless. I'm going to go out on a limb and say that the critical ingredient wasn't the quality of your virtual goods or the writing in your newsletter, but the timing and novelty of your approach.
This story isn't about making the better e-mail newsletter. It's about a guy who recognized that he could arbitrage traffic for massive gain.
I don't see anything in the story that makes an ethical judgment one way or the other on the practice.
XBox seems to be the only exception. Did I miss something else?