As one of their deals of the day, BestBuy.com cuts the price of 16 flavors of 16 and 18-count Keurig K-Cup Packs from as high as $11.99 to $7.99 each. Shipping adds $2.99, but if you get five packs and bring your order total above $35, the shipping will be free. At $0.44 a cup, this is currently the best price for these packs by $1.59. Sales tax is charged in most states.