I'm surprised that not many are recognizing this as it simply trading as a currency based on supply and demand, etc. We may have seen one or two blurbs on that subject.
As for smaller denominations, I got a few smaller notes as a "freebie" with earlier purchases. A paper currency worth a nickel would hardly cut it, LOL. Now, a five dollar IQD makes sense.
You cannot get the water to clear up until you get the pigs out of the creek!