You can get pretty much anything you want, at any time of the day or night. (Gosh, do I ever miss sushi and dim sum).
“Mail Order” is an entirely optional part of your vocabulary.
Public transportation (in some cities), or at least living close to amenities, saves the need – environmentally and financially – for a car.
The variety of jobs and careers available is wide. Where else can you be a slinky repair technician AND be in demand?
The variety of accommodation available is even wider. Urban lofts, flats, houses, skyscrapers, hovels, you name it.
A faux pas or fall-out with somebody is easily overcome. Just make new friends and hang out with different people.
There is always a general interest course or class available for you to take, with some curriculums being fairly specific. Belly Dancing, How To Write a Romance Novel, and Poker Website Design courses are examples.
Proximity to fire departments, police, and hospitals can make city living safer.
You wouldn’t think twice about going out to see a movie or show. It’s all right there.
You can streak through the city, completely naked, and chances are it will never get back to you. (Not that I’ve ever…never mind).