Author offers free Excel e-book, experiments with biz model

To my post the other day about experimenting with business models, Bill Jelen is offering his e-book on using Excel 2007 for free at a good-enough-for-montor-but-not-for-print resolution. Why?

My goal is to get this version in the hands of 5 million people. You can help by downloading the book and passing it on to your co-workers, etc. Some percentage of people who get the book will buy a print copy or will buy a printable e-book, so I believe that the counter-intuitive strategy of giving the whole book away in one download will work fine.

Kudos. Seems like a cool idea. I hope it works out well.

Thought exercise: Again, what would the game equivalent be? This is different than a trial or demo. This is the full thing, but at low res. If you had a game with high replayability, would this just be the non-HD, low-fi-shaders version?