Why do the vast majority of U.S. sellers want to charge Canadian buyers the same shipping rates as THE REST OF THE WORLD when the USPS has significantly cheaper postage rates to Canada (and vice versa, incidentally, for Canada Post to ship to the U.S.A.)? Numerous times I have complained to American sellers about this, and usually they have conceded my point and given me a proper Canadian rate, but I shouldn't have to ask in the first place - eBay makes it easy to list different shipping rates for different countries (something at least one American seller has claimed they don't, as a seller as well as buyer I know that eBay do).
