I've sold to Europe, Australia, and the U.S. with no problems at all. Sure there's a small amount of paperwork, takes about 10 minutes all told (which is nothing compared to the time it takes me to pack for safe shipment). World Wide Web, lots of potential buyers all over the globe and if they're willing to pay me for the item including shipping, I'm happy to do the deal.
Being Canadian I don't try to purchase items listed here as "U.S. Only", shame cuz there's a lot of cool stuff I would buy if I was invited to by the seller.