Abstract: A digital promotion processing system may include user devices each associated with a respective different user and a promotion processing server. The promotion processing server may be configured to store historical purchase data for durable good products purchased by the users. The historical purchase data may include a replacement lifespan and a purchase date. The promotion processing server may also be configured to determine an expected product replacement date for a given durable good product from among the durable good products based upon an elapsed time from the purchase date relative to the replacement lifespan, and upon reaching the expected product replacement date, generate and communicate a digital promotion for a replacement durable good product to a corresponding one of the user devices.

Abstract: An account validation system may include an account validation server. The server may store an order purchase history for accounts. The order purchase history may include a purchased product. The server may obtain an account identifier from a user device for a given user and communicate the purchased product to the user device for display thereon based upon a corresponding account associated with the account identifier. The server may communicate a fake product that is inconsistent with the order purchase history to the user device and based upon the order purchase history for the corresponding account. The server may also cooperate to prompt the given user to differentiate the purchased product from the fake product, and determine, based upon the user device, whether the given user has differentiated the purchased product from the fake product, and when so, validate the corresponding account.

Abstract: A product purchase system may include a product retrieval robot for a physical store and a mobile wireless communications device associated with a given user and configured to obtain product identifying data for a given product for purchase in the physical store. The given product for purchase may be placed by the given user into a physical shopping cart. The system may also include a server configured to identify the given product for purchase based upon the product identifying data, and determine an add-on product associated with the given product for purchase and located in the physical store. The product retrieval robot may be configured to cooperate with the server to retrieve the add-on product from the physical store and deliver the add-on product to the physical shopping cart.

Abstract: A product purchase system may include a product retrieval robot at a physical store and sensors within the physical store and configured to obtain product identifying data for a given product for purchase in the physical store by a given user. The given product for purchase may be placed by the given user into a physical shopping cart. The system may also include a product purchase server configured to identify the given product for purchase based upon the product identifying data, and determine an add-on product associated with the given product for purchase and located in the physical store. The product retrieval robot may be configured to cooperate with the product purchase server to retrieve the add-on product from the physical store and deliver the add-on product to the physical shopping cart.

Abstract: A promotion recommendation system may include a user device associated with a given user, and a promotion recommendation server. The promotion recommendation server may be configured to identify a social media influencer followed by the given user and determine a beverage associated with the social media influencer. The beverage may have ingredients. The promotion recommendation server may also be configured to cooperate with the user device to determine a current geographic location of the given user, generate a recommended beverage having one of the ingredients, and generate a digital promotion for the recommended beverage for redemption at a redemption location based upon the current geographic location of the given user. The promotion recommendation server may also be configured to communicate the digital promotion to the user device.