Most of the time during the last ten years, I've lived in a suburb of a roughly 1 million population area, and generally my commute is 10 minutes or less. When I've lived in the middle of a city, my commute has been (in two different cases) about a 10 minute walk. Even when I was inside the DC beltway, not exactly in the city or in the suburbs, my commute was about 10 minutes. I simply wouldn't consider anything much worse than that.