Microsoft Ebooks and Copy Protection

Richard Pennington writes "I just saw this article in Computerworld about Microsoft's copy protection scheme for its ebooks. According to this article, Microsoft's ebooks cost as much or more than paperback or hardbound editions. To top it off, if you upgrade your computer, you may not even be able to keep the ebooks you've purchased. Who exactly is Microsoft's market for these things?" See a previous ebook article.