So you finally decided it's time to buy a new sofa. You venture into a furniture store to sit, lie and lounge on anything that catches your eye; you play house by imagining watching television or snacking or napping or entertaining friends and family, and then leave, hopefully expecting a sofa delivery in a few weeks. Right? This scenario that has played out over and over again. But it might become a thing of the past, if retailers like RH (formally known as Restoration Hardware) have anything to say about it.