 Diane, 61, lives in a cozy condo complex in southeast Las Vegas. The living room decor is fancier than your average home. A large silver flower vase sits on the coffee table, a vine of silk leaves snakes around a silver-framed mirror, and a white fur blanket lays on the sofa. Diane's cats, Baby and Coco, were too scared to come out, which my allergies made me grateful for.