My son and his wife are trying to fix up their home to sell. They have redone all three bathrooms and the kitchen as well as the floors. A real estate agent friend of theirs suggested they need to replace the railing on the stairs leading to the second floor. The house was built in the early 1970's and there is only one baluster per stair which is not up to local codes. They have checked into what it would cost and it's really expensive. If they were to give it a fresh coat of paint, would that be enough or is it worth replacing it for resale?