Buying a home allows you to invest in a property that is essentially paid for by the government via your BAQ. You are able to use funds that you would forfeit if living on base. If you purchase near the base and find out that you will be PCSing, You can sell to another service member or rent to a service member and let them continue to pay for your investment.

There would be tax advantages in buying a
home, I would have my accountant explain
this if I were you. Interest rates are still low.
I would need to know how much it costs you to live on base. Compare that with what your motgage payment will be and that will
help give you an answer.