According to the National Association of Realtors, many metropolitan areas are experiencing strong year-over-year home price increases. The median single-family existing home price jumped in 73% of the measured markets. Approximately 119 metropolitan areas experienced price gains in the fourth quarter of last year when compared to the fourth quarter of 2012. Data states that  26% of metros saw double digit increases, and while this new data is positive, many experts express concern that housing affordability may fall. More here