I understand there are solutions like skimming the surface of a floor and I suspect that over the past decade there are newer products that may lend itself to a durable new finish when done correctly..........but, are there any downsides or does anyone know of a very durable topping that can be used OR is it a waste of money for the life one might get out of it when maybe the only real solution is to replace the floor. I suspect there are some great people out there who have had experience dealing with pitted concrete floors that can provide some good solutions and advice. Maybe TOH has done a complete article on it although I have not been able to find one. Your feed back will be greatly appreicated and by the way......I think the This Old House Magazine is one of the best magazines that have come out in a long, long time! Good stuff.