For my shop, I made the decision to charge in yen several years ago. At that time, it was not an easy decision to make because my biggest customer base was the USA and they're not used to making purchases in anything other than the mighty dollar. It wasn't the "norm" to charge in yen, if there were other shops doing that, there weren't many. However, we have to make all of our tea purchases in yen, and unlike the Japan based shops who are nothing more than a website hooked up to a PayPal account, our company is an actual Japanese corporation and all accounting, expenses, etc, are in yen - we are accountable to the Japanese tax authorities. Likewise, it was a pain to constantly change the prices of all of the products we carry based on the exchange rate. So we bit the bullet and changed to a yen based shop. We use software that detects what country the shopper is viewing the page from and gives the equivalent exchange rate. When I started charging in yen, the yen rate was in the 70's to the dollar so I carefully made sure my prices competitive at that time. Once the yen went weak a few months ago, the price the customers had to pay dropped like a rock. It was excellent for our customers, and it was excellent for us as it made us super competitive with those who use a dollar based shop, and we had to do nothing, the yen based prices were already set. Lately I'm seeing Japan based competitors who have been "inspired" by what we did years ago and have now decided that a yen based shop might not be a bad idea after all. Anyway, it's encouraging to hear that you don't mind a yen based shop.