The Costco luxury items guide 2026 begins with a commercial paradox that every member who has discovered it describes with the same surprised delight: the warehouse where you buy your paper towels in bulk is also one of the best places in American retail to buy Dom Pérignon, Tom Ford fragrance, La Mer skincare, and caviar — at prices that the luxury retail channels these products normally inhabit simply cannot match. The Costco luxury ecosystem is not accidental. It is the de