There is no definitive answer to this question as prices for kitchen appliances can vary greatly depending on the type of appliance, the brand, the retailer and a number of other factors. However, it is generally accepted that big box stores like Costco offer competitive prices on many items, including kitchen appliances. In fact, some major appliance manufacturers (like Samsung) have been known to run special promotions and discounts exclusively through Costco. So if you're in the market for a new fridge, stove or dishwasher, it's definitely worth checking out Costco's selection and pricing before making a purchase.