It used to be the case that NYC was expensive, but most of the rest of the country was cheap. If you didn't want to pay the ridiculous rent in New York, you could always move to a "second tier" US city like Seattle, Austin, or Denver, and enjoy a cool urban environment at a comparatively very reasonable price.

That no longer seems to be the case. Yeah, it is expensive here, but when I talk to my friends living in those other cities, they aren't paying that much less! Their rent is cheaper or they get more for the money, but it isn't a whole different ball game like it used to be.