<human>:  How does the cost of living in different cities compare?
<bot>: The cost of living in different cities can vary considerably. Factors such as housing costs, transportation costs, the cost of goods and services, and local taxes can affect a city's cost of living. Commonly, cities with higher GDPs tend to have higher costs of living, as cost of goods and services are more expensive. Additionally, renting or buying in larger metropolitan areas often comes with a higher price tag than in smaller cities or towns. Ultimately, the cost of living in each city depends on a variety of factors and must be researched before making a comparison.