There is the widest variety of deep cultural experiences, events, and food next door to you than anywhere else in the world. You never have a reason to drive, but are still in the US; no traffic jam, instead reading hacker news on a relaxing subway ride or walk into work. Retail businesses are no bullshit fast and efficient. Every type of job opportunity surrounds you. It's the safest comparable city in the US.
The only things on your list that you can't get in every other city with more than a couple hundred thousand people is specific museums, seeing Broadway shows immediately upon release, and ultra-high end restaurants.
I wouldn't brag about NYC's beaches and skiing.
I’m not hating on the city, just pointing out that New Yorkers often believe that only NYC has stuff and every other city is a barren wasteland.
Probably when Frank Sinatra was alive but certainly not now.
What can you get in New York that you cannot get somewhere else?