The reason that there is such a discrepancy is due to the speed of shipping I think. From the U.S. first class international can take up to 3 weeks, whereas priority international takes no longer than 10 days. The difference in price between the two can be $30 or more. Also, almost all sellers require insurance for international purchases over a certain amount because it's the only way to prove that the items were shipped and arrived to the buyer - without it, the buyer can claim the item never arrived and the seller will be forced to issue a refund by eBay, even if the item did in fact arrive. Insurance is only available for priority international or express mail international for U.S. shipments, and it's an extra cost on top of postage. So things can get really expensive - I just shipped several MOC G2's to a buyer in Australia and with insurance it was $50. Of course, I made sure to offer the buyer several pricing options and clearly explained where the costs were coming from, so she didn't feel cheated at all. A lot of sellers neglect to do this. Had I sent the same items via first class international without insurance, the cost would have been around $20. Lighter items are even cheaper, to most European countries I can send 3 or 4 ponies for about $6, and to Australia it'll be $12-$14.