I was browsing through the new options for books on O'Reilly and Associates and noticed something kind of cool
If you buy the print edition of a book, you can get the ebook for just a couple dollars more.
This is pure genius marketing. I may question whether or not I want the ebook at 20 or the print copy at 25, but to get them both for 28, well that's a no brainer.
This is actually a strategy examined at great depth in Predictably Rational
In all honesty, $20 is probably over priced for the ebook, but $3 if you are already buying the print edition is actually a pretty good deal