It is cool indeed. I've been thinking about how this sort of thing is likely to work out, especially since hippich started his site.
It seems to me that prices based on content will not stay up. For example, I pay the fee to get the content, then I make a very similar site, but charge 50% less. Then someone who can host even more efficiently comes along and undercuts me, until we get down to around the cost of hosting.
One solution is to charge a largish one time fee to all users collectively. So Kiba puts out a new sketch and says I want 50BTC for this one, here is the address. Everyone can see how much has been sent to the address and once the full amount is received, the content is free and available to everyone in the world to share with whomever. No threats, no DRM, content creator still gets paid, granted mostly based on the quality of previous work.
Reputation would help a lot with a system like this, but for some things previews would work well too. Anything in a series would be perfect, cartoons, serial dramas, chapters of a book, etc.
So, can you add that to what you have? It seems simple, whatever opens access now can be triggered for everyone once the total sent to the address crosses a threshold.