Costco has been known for its limited selection of items and rotating inventory frequently, but sometimes these products often disappear without warning. The company discontinues popular items without warning, such as Kirkland Signature Creamy Peanut Butter, which was pulled from shelves in September and replaced by Naturally More Organic Peanut butter, often a replacement. However, a few months ago, Kirkland signed back to Costco's shelves with a slow rollout. This decision was met with enthusiasm among Costco members, with some expressing delight at seeing their favorite peanut butter returned. There are several reasons for such discontinuations, including supply chain issues, shortages, and fluctuating sales. The good news is that Costco tends to listen to member feedback and return products if enough members protest to bring them back.