That's amusing when other countries prefer US dollar as payment but yes, I would also prefer paying in local currency. I'd rather buy the local currency one time than to keep thinking about exchange rate every time I pay for something.

Yap, the peddlers in front of Angkor Watt accepted our peso. My friend and I were actually surprised when one of the kid peddlers said so. When adult peddlers joined, they confirmed that it is okay for them. That was cool.