The document analyzes data from Trulia to determine whether it is more affordable to rent or buy homes in major U.S. metropolitan areas. It calculates a price-to-rent ratio for each area and finds that buying is generally cheaper than renting when the ratio is 15 or less. Among the top 10 metros where buying is most affordable are Detroit, Oklahoma City, and Dayton. The top 10 metros where renting is most affordable include Honolulu, San Francisco, and New York. It also provides price-to-rent ratios for specific areas within major cities like Los Angeles, San Francisco, New York, and Chicago.