As always, human emotion tends to over react. Interest rates creep up a few ticks and investors panic. Higher interest rates are a bellwether of an improving economy. Soon, the thoughts will be "I had better buy a home now, before interest rates go any higher!". This will drive more home buying. Interest rates are still very low.
When I bought my house in 1998, my rate was 7.125% on a 30-year fixed. Now its what; 4.25%?
Also, I believe we are in a secular bull market overall. I heard news yesterday that gasoline prices will adjust downward over the next year. Good for us all.
D.R. Horton will be a $30 stock by spring 2014. This is a time to buy more and dollar cost average down, reducing the overall net cost of your position.