Fancy bathrooms are all the rage. One of the hottest-selling segments of the recovering housing industry is the loo, as our British friends like to call it. People are pouring unprecedented amounts of money into all sorts of luxurious upgrades that only a few years ago would have been unthinkable. (And if you think it would have raised eyebrows recently, just consider how people would have felt 100 years ago if you had told them that the successor to the lowly outhouse, with a crescent moon carved into the door, would one day be a place where people would want to relax, luxuriate and while away the time.) Kohler, a huge toilet manufacturer -- I mean they manufacture a huge number of toilets, not that they make toilets that are huge -- has a new digital model on the market.