Sold as seen is one point but another that many seem to foget is "goods must be fit for the purpose for which they are sold"

I would argue that the buyer is as much (if not more so) to blame as it's his responsibilty to check over what he is buying thoroughly. I walked away from many a shed of a car because I checked it over properly and knew they were crap. If I'd purchased any one of them the blame would lie with me