Great point. On the opposite side, I found that if smaller restaurants or vendors price things in USD, they will sometimes accept an even conversion to JA currency. For example, if the bill comes to $10 USD, I will ask if they will accept $1000JA. Typically, they will say yes, which works out in my favor. Of course, larger places will pull out a calculator or use a POS system to convert your bill to JA, at their own exchange rate.