All New York City needs to rise to the economic level of Yap is a new manhole cover policy. Drill a hole in the center.
It a tough way to make a living, but enterprising thieves have been stealing the 300-pound covers lately -- here in the years of our Obama recovery from the Bush et (most definitely) al. financial debacle. The chunk of Con Ed cast iron is worth about 30 bucks at the scrap yard.
It probably isn't a good idea to consider a long-term investment in Manhole Heist, Inc. When Ben Bernanke gets wind of this new store of value, he'll probably seize control and figure out a way to create manhole covers by the trillions. They'll depreciate, and pretty soon it will take a wheel barrow load of them to buy a pair of socks.