One advantage of large cities is that you're more likely to have a critical mass of people sharing a common interest to have a subculture or community. For inst

One advantage of large cities is that you're more likely to have a critical mass of people sharing a common interest to have a subculture or community. For instance, in my city there is a healthy film photography community that's large enough that there's still dedicated film labs and at least one camera shop that sells only film cameras. Another thing that differs between cities is the nightlife varies a lot. The health of a city's nightlife isn't just a population thing though, but also zoning and licensing have a big factor in that. For example, practically everything has to close at 3 AM in Sydney, which has had a massively detrimental effect on the nightlife. Meanwhile in Melbourne you can still party from Friday night to Monday evening without stopping if you really want to. There's not a lot of cities around these days that still have clubs with 24 hour licences. All the places I regularly go to here in Melbourne close at 6 AM at the earliest.