I don't understand why people have nostalgia for NYC in the 1970s. I get nostalgia for previous decades (of course), but the 70s? Due to the property booms of that general era it was actually in the 1970s that bohemia was finally priced out of its historic haunts in Manhattan. I guess that it might seem odd that this happened at the same time as urban blight got worse and crime spiraled out of control (the bizarre idea that this is ever a good thing is screamingly, nay, howlingly, bourgeois. In certain circles nothing gives away a trust fund and a private education quite as reliably as a hard-on for for urban misery), but that was the 70s for you. Same thing happened in a lot of other big cities. Bizarre decade that one, and that's before we consider the clothes...
I actually rather like the 70s fashion...