You've read that a kitchen update will pay for itself, but the numbers can be deceptive. An expensive kitchen redesign could discourage as many potential buyers as it attracts. You may see cooking shows everywhere TV, but that doesn't mean that everyone is the next Bobby Flay or Gordon Ramsay. Investing in granite countertops, a Viking range and a built-in wine cooler is nice if you're indulging a personal passion, but don't expect to recoup the entire cost when you sell. In fact, the presence of some of those high-end amenities may cause your home to stay on the market a couple of months longer than it would otherwise.