Do you think the numbers make sense ? The cameras they have -16 with res 480, 30 with res 720, 21 with res 960 , and the rest are 240. I can get new cameras with an nvr with about the cost of licensing. The maintenance guys sit around so screwing in the new ones would just be utilizing the labor that they are already paying for. There would be some cost of programming but they would have much newer cameras.