It's always been a stereotype that the Asian ones are smaller than Western ones. Hence a dollar or a euro is worth thousands of yen, or tens of thousands of Vietnamese dongs.
I think in this case the stereotype has some truth to it. If instead of a dollar we used the dong, our dong would be substantially larger than theirs.
-edit-
Since we are all avid currency speculators, I'd like to float a couple of questions:
- What are the most dongs you've ever had in your pants?
- How many dongs do you think you could wrap your hands around?
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