Yes, if you plan to stay in the property for a least a few years. Paying discount points to lower the loan's interest rate is a good way to lower your required monthly loan payment, and possibly increase the loan amount that you can afford to borrow. However, if you plan to stay in the property for only a year or two, your monthly savings may not be enough to recoup the cost of the discount points that you paid up-front.
*All rates are subject to approval with 80% loan to value, 740 fico and Fannie Mae, Freddie Mac and FHA loan limits apply.