From RealTrends.com: RealtyTrac released a housing affordability analysis showing that the estimated monthly house payment for a median-priced three-bedroom home purchased in the fourth quarter of 2013 — including mortgage, insurance, taxes, maintenance, and subtracting the estimated income tax benefit — increased an average of 21 percent from a year ago in the 325 U.S. counties included in the analysis.The rise in monthly housing payments came as the result of an average 10 percent rise in median prices across the 325 counties combined with a 33 percent increase in the average interest rate for a 30-year fixed rate mortgage as reported by Freddie Mac in its Primary Mortgage Market Survey.