Of course that is why we have a banking system to make such transactions easier than shipping large pallets of cash across the world. The only benefit that bitcoin has is the ability to do this with out complying with the law, so useful to people planning on fleeing the country to get their assets out of the country with out banks getting involved and raising questions.
Though are there enough people fleeing justice, laundering money and so forth to really sustain the utility of bitcoin?
Like all commodities. Though unlike real comodities there is a general floor to the price because there is fundamental demand for things like gold, copper or what have you.
Easy to do with the banking system though. I mean if you are hedging money in gold, why pay the excess price for receiving it in bullion?