Millions like me will never step foot back in NYC. Even during the Bloomberg years the Giuliani revival of the Big Apple was sufficiently maintained that most tourists felt safe, and were able to enjoy the sights, the shows and the restaurants. Never again.
I was last in New York City in 2006 or 2007. Took the train, and met a friend who flew in from Nevada. We went to the Metropolitan Museum of Art, and the Natural History Museum. No reason to go ever again.