Originally Posted by
gfunkdave
I happen to be partial to the $50, probably because they seem rarer than the $100. Though the $100 is certainly more useful if you just want cash for an emergency. I've never encountered a place that refused to break a $100 (unless they didn't have enough cash in the till yet...I had to refuse one when I worked at a bookstore in high school and someone wanted me to break a $100 first thing in the morning), and often overseas a crisp $100 bill is the only denomination they'll take.
I think they discontinued the 500 euro note because they found most of them being used were being used by drug dealers and other criminals.
Didn't think of it, but makes sense that overseas would trust $100's denomination the most as they would encounter $100's more often than $20's. I'd say in the US it's the opposite.