When working with buyers, one of the most frequent requests I receive is for a home with a finished basement. If you have a walkout basement or daylight windows that is even more of a plus. Buyers are looking for additional living and entertaining space. They not only want carpet and drywall, but if you have the funds, finish a bathroom and if possible a separate area that could serve as a theater room, workout area, or playroom. Having two separate defined spaces will add value at a minimal cost. At your price point, a finished basement is going to be expected. Even at the $500,000 price point buyers are choosey and there are plenty shortage of lots available. If they cannot find what they are looking for in a resale property, they will build it.