Iraqi dinar, the Iraqi currancy, is still an exotic monetary instrument to us, even though we can get Iraqi dinar for sale. Oil is their only prominent export, which is sold in dollars, so we in the states never need to know about Iraq currency.
Another reason that no one in the States is aware of the dinar is that all of the bank notes printed between 1990 and 2003, as well as the 25 dinar bill from 1986, bear the smiling, loving face of the good friend to America, former Iraqi president, Saddam Hussein.
Along with your standard dinar bill amounts, they also issued a very large bill in 2002, a ten thousand dinar note, only to be used for large and inter bank exchanges. That whopping ten thousand dinars, however, means nothing to the US dollar. For most of 2012, a single US dollar was valued at 1,200 dinars.
And one final reason for us citizens of the United States to not know anything about the Iraqi dinar is that our troops just pulled out of Iraq at the tail end of 2011, finally leaving a war of 9 years. No wonder that we had no idea that there was Iraqi dinar for sale!