We had a customer purchase about $8500 in cashiers checks over a few weeks to purchase Iraqi dinars. The branch manager was very concerned and called it to my attention. I did some research and learned a few things.
The most important thing I learned is that this is a legal business and there's nothing we can do about it. A fool and his money... In fact, as we are not investment advisors, I've told the staff not to try to counsel customers on the wisdom of this investment.
The second thing I learned is that while there are many companies that will sell you dinar, almost no one will buy them back. It's an illiquid asset at this point, unless you're willing to sell at 60 to 70 cents on the dollar.
The sellers tease you with the idea that the currency will be re-valued, and a few thousand dollars of dinar will be worth millions.
IF the dinar is ever publicly traded on currency exchanges, and IF the Iraqi economy grows faster than the US economy for an extended period, there could be some small profit to be made IF you are a sophisticated currency trader.
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I thought getting old would take longer.