Richard MacManus of eBook Culture reflects (http://www.ebookculture.com/archives/2004/11/3_month_review.php) on his last three months' experience, both positive and negative, with reading e-books.

While he agrees that e-books are more portable than paper books, he also adds that the availability of commercial e-books appears to be limited, and that the existance of proprietary e-books (with the various forms of DRM) makes it more difficult to understand the "real value" of e-books as compared to paper books.

And I have to agree with him.