Each country has its own postal rates. I charge a "flat" price from Italy, generally I calculate a dollar more than the "Italy for Italy" rates (even if I always lose some money to ship to the USA or AUSTRALIA). Unfortunately, asking more than $ 5-6 per card (even if the actual shipping, for example to Australia, cost $ 2 more) means you have a lot of chances not to sell it. As you say, not only are there those who ask for a single dollar for the shipping cost, but there are even those who offer free shipping. Generally, they are people who know what they are doing: either they know they can reach high amounts with the cards at auction, or they already charge the postal expense on the initial price of the Aceo (a trick as old as the world, but it seems that it often works).
