Consider someone who likes walking to work, groceries, and everything they need; hates driving and owning a car; loves having top caliber arts and entertainment; feels more alive living in a place where people are on the street; and enjoy an evening walking bar to bar drinking with friends and not having to worry about a DUI on the way home, cities offer a lot.
That is Boston, Manhattan, and SF in this country.
(Oh, and I can hold my husband's hand in the city without getting weird stares. That's not possible in many parts of the country.)