Your missing another, potentially large cost, shipping and handling. Buying the books even at retail (with your tax ID) might be a better option for you and th

Your missing another, potentially large cost, shipping and handling. Buying the books even at retail (with your tax ID) might be a better option for you and the customer, to avoid the cost of shipping. It sound like the few hundred bucks in inventory cost isn't going to be a deal breaker for you.