Originally Posted by
AlohaDaveKennedy
7. Toll booths
8. Charity boxes in airports.
9. Buying goods in a Central American nation that uses dollars as currency
10. Table tips
So, you get weird looks when you use US Dollars in the USA and you expect the coins to be readily accepted in Central America.
... Not to mention the excess fees you'll have if you check-in $5,000 worth pf dollar coins into the plane.