Is amazon worth the effort?
In my opinion, you just have to be on amazon. True, amazon insists on a 55% discount (off your retail price) and you pay shipping to the warehouse. But once your volume increases because of the wonderful publicity you are going to generate, amazon will order in larger quantities and you can conserve shipping expenses. Consumers today expect good books to be on amazon (along with reviews of those books and prompt availability). Besides that, if your promotional efforts result in widespread attention, anyone anywhere can buy your book. Your website may be obscure but theirs is not.