That can really be a toss up depending upon market conditions, Are the values there stable , falling , or rising? There are many things to take into consideration, What will be the cost of owning as apposed to renting? If home values increase over the next 4 years with the mortgage interest deduction and potential equity increase it may be worth it. There is quite a bit of math to do on your behalf however, and we can at this point only speculate on the future of home prices. I recommend you speak with a good local lender to discuss all of the financial implications.