Home Cooking: Will every household want — or need — a 3D printer?

Even though I know it’s not true, the MakerBot Replicator 2 seems to create items out of thin air. Busloads of school children, tourists, and senior citizens have stopped at the MakerBot retail store in Manhattan’s SoHo neighborhood to watch a nozzle lay down heated, biodegradable polymer polylactic acid, layer by layer per a CAD drawing, to make a bracelet, a house, a heart, or Doctor Who’s TARDIS.