There's also the Pieds-à-terre phenomenon: http://www.nytimes.com/2013/02/12/nyregion/paying-top-dollar-for-condos-and-leaving-them-empty.html http://www.nytime

There's also the Pieds-à-terre phenomenon: http://www.nytimes.com/2013/02/12/nyregion/paying-top-dollar-for-condos-and-leaving-them-empty.html http://www.nytimes.com/2013/02/12/nyregion/paying-top-dollar...