2. Mortgage rates are at rock bottom and won't stay there forever.

The national average on a 30 year fixed-rate mortgage dropped to 4.36 percent in Aug 2010 - lower than it's been in the past half century. Interest rates for the same time last year averaged 5.19 percent, representing a difference of $90 in the monthly payment on a $200,0000 home with 10 percent down, as well as a savings of $32,460 over the life of the loan.