As many readers know, my wife and I currently have a medieval and renaissance cookbook up as a Print On Demand paperback from Amazon's CreateSpace subsidiary. Now that it is there, it occurs to me that there is an interesting tradeoff associated with where we choose to sell it.
Selling directly from the CreateSpace bookstore gives us the highest royalty. On the other hand, such sales do not appear to register in the book's Amazon ranking or give purchasers an opportunity to post reviews on the book's Amazon page, unlike sales made directly through Amazon. So perhaps it would be more prudent, at least for a while, to point people at the book's Amazon page instead.
On the third hand, CreateSpace does, and Amazon, so far as I can tell, does not, provide a mechanism by which we can discount the book to resellers. So perhaps we should point resellers at CreateSpace, everyone else at Amazon.