Web 2.0 Principles and Best Practices?

I came across this article when browsing through the O´Reilly Radar blog. In a recent post, Tim O´Reilly announced "a special report that he´s been working on for the past few months with John Musser of ProgrammableWeb.com fame, entitled Web 2.0 Principles and Best Practices".The article can be purchased for $375? This is not a typo!
This must be a joke, but for sure not a good one. It´s ironic that O'Reilly coined the term Web 2.0, based upon a set of important principles such as collaboration, community building and harnessing collective intelligence and then ask for $375 to give us the chance to read a small article with some stuff that is not new anymore (everyone who is familiar with the Web knows what Web 2.0 is about). I believe now more than before, that Web 2.0 is just a marketing term. O´Reilly coined the name to garner large registration fees at his Web 2.0 conference and now expanded his What is Web 2.0? paper to a 101 pages article and ask us to pay $375 to have a look at it...
I find it a bit strange that someone like George Siemens provides us with a whole and very intersting book for free, and O´Reilly ask us to spend $375 for his article? Is this part of "Web 2.0 Principles and Best Practices"; not to forget, this was the title of O´Reilly´s new article...