But they're still cool designers.
The market value for any digitally reproducible product that is not specific to anyone’s needs is close to zero, as there is always another similar thing around that goes out for free. Why free? Because the free product gets a lot of high value attention and makes up for its actual sales loss with Google ad words or some nice contract…
Source: Information Architects Japan » iA Notebook » Realitycheck: What Works on the Web