This is the first time I've seen the free tutorial with the option to buy the source and assets. I think this is a very interesting way to solve the problem of

This is the first time I've seen the free tutorial with the option to buy the source and assets. I think this is a very interesting way to solve the problem of monetizing while still allowing uncrippled content. What is interesting to me is that the concepts in the article are arguably more valuable the sample code itself. But by charging for the shallower of the two assets, you end up charging the people who are more likely to pay in the first place.