Having lived in Japan for the past decade, worked on systems which interact with the Japanese banking system, and having a few hundred international wire transfers under my belt, I feel like I have to comment here. I could just say that "Every falsifiable representation you made about the Japanese banking system is, in fact, false." That would be true, but then I'd have to get into an argument about the density of post offices in Ogaki or differences in individual bank's interpretations of Japan's AML laws or their internal risk controls.

International wire transfers are not some wildly innovative technology which this backward island nation with a multi-trillion dollar economy built on exports and financial services had never heard of before. You can, in fact, make a person-to-person international wire transfer which is, from the user's perspective, totally automated, by typing into an ATM machine. Somebody at the bank will end up typing into a different machine, exactly like happens if you do a wire transfer through e.g. Bank of America, at either a branch or through their web site. The larger remittance firms each individually process far, far, far more than 1,000 transactions per day. I was a monthly customer of one, and can assure you that yen can leave Ogaki and show on a Bank of America bank statement within 45 minutes. You will claim that this is because they have foreign subsidiaries, but it is, in fact, because they have no difficulty proving to US banks that they are not engaged in money laundering. I lack the intellectual resources to even attempt to engage with the claim that the Magic the Gathering Online Exchange has international payment processing challenges in excess of those experienced by Toyota.