Dean Wesley's Smith's recent book deals with exactly this sort of thing. He uses his own comparison of a magic bakery. Books are like magic pies, you bake them once and then keep selling, and what ever you do don't send it out of your bakery (giveaway your rights.)
Nice. These kinds of things really need to be learned by people who already know the business. Which makes it particularly hard for new authors who don't know anyone in the business. This has resulted in a lot of cautionary tales being generated over and over again.