This factory-refurbished Keurig K-Cafe Essentials Single Serve K-Cup Coffee Maker drops from $79.99 to $49 with free shipping at BuyDig. This is the lowest price we found for a refurbished model by $30. The K-Cafe has a 42-ounce water reservoir and a milk frother. It can brew coffees, lattes, and cappuccinos in three cup sizes. A 90-day Keurig warranty and a one-year CPS extended warranty will be included.