To come up with those 10 rules, Vook examined what it calls the four successful factors for e-book pricing: “categorization, discoverability, marketplaces, and the importance of libraries.”
Some of them seem pretty obvious to me, like #7:
Lift effects through savvy launch promotions have a profound impact on sales.The article is not so much aimed at authors who do their own ebooks as it is at retailers (or in this case e-tailers) and publishers. Even so, it can be informative for author-publishers. Be sure you scroll through the comments. Most of them so far seem to be from author-publishers.
Do you have any of your own rules of pricing for your ebooks?