Why is postage cost so high, 2-3BTC additional for sending a coin to an international address makes it a gimmick at best
at the moment, the only shipping materials I have available are Priority Mail Flat Rate envelopes and boxes. That rate covers up to 4 lbs (almost 2 kg). So you could buy hundreds of coins and the shipping cost is the same.
I've ordered some bubble mailers that will allow me to ship small quantities of coins cheaper but they're not here yet.