I'm reminded of Andy Rooney's segment about purchasing a small, gasoline-powered scooter for himself so he could travel New York in ease and comfort. The problem was he ran a real risk of hitting pedestrians if he tried to use it on the sidewalk, but felt vulnerable using it on the street. The final sentence of his segment was: "So I packed it back in its box and put it in a closet -- never to be used again."
Windows RT tablets have a lot of the same neither-fish-nor-fowl nature. They are clunky and inefficient compared to an iPad or good Android tablet, but weak and underpowered compared to a Windows PC.