As someone who grew up in NYC, the only lasting appeal to me is family and specific ethnic culture that is much less in every city in the US that isn't NYC.

The apartment I grew up in, in lower manhattan, today would cost more than 20-30 times what my parents paid for it in the 90s, and it wasn't a nice apartment. There was no laundry in the unit, it faced a dark courtyard, the tempurature of the apartment was never that comfortable, had yearly huge bug infestations, but it was in a great location and was about 5 rooms more or less.

I think people just romanticize a life different than the one they grew up with. I certainly miss some aspects of the city culturally, but life on the west coast, I've had considerably better living arrangements ever since I've graduated college than the one I grew up in, and my parents were both professionals with graduate degrees, it's even worse for a lot of other people.