I received this question from author Charles Blazek: "Why does PublishAmerica require authors to choose a shipping option on items that don't involve shipping anything?" He's talking about promotion services. They require choosing a "shipping option".
It's a valid question. Especially since shipping isn't what it used to be, although you're probably surprised to hear that more than 90 pct of all international trade is still carried by real ships. How many? There are more than 102,000 merchant ships sailing the world's waters. They carry much of what you eat, of what you sit on and sleep in, and of what you wear. But shipping a book, or a promotion service? Where's the boat