Actually, I haven’t felt the need to buy the book. I made up my mind on the subject long ago, and don’t really need the reinforcement :)
Oh. Well, that's one way to look at it. I have heard that there are actually some people who have purchased 100 copies of this book at a time. Not retailers- just folks who are familiar with the subject matter and felt the need to buy 100 copies. I figured it was so that they could help bolster sales and spread the news to others about the subject. But, by your measure, they must need quite a bit of reinforcement!