Abstract: A modular merchandiser and system with a frame of vertical posts and horizontal bars is carried on legs and carries grid elements sandwiching an indicia panel. Adjacent merchandiser panels can be linearly, perpendicularly or angularly (from about 10° to 350°) joined, and placed on the front end or other positions in various locations to carry various product on novel, height adjustable accessories and merchandising effects. Various parts of the merchandiser and the accessories therefor may be obtained in a first financial transaction (lease or sale) and others in subsequent financial transactions to update the same. Supporting special software can be similarly obtained and used to achieve uniform displays by using the included indicia panel. The system permits easier, less expensive, less wasteful, faster, and more environmentally friendly updating of the merchandiser, accessories, frame and grid portions separately.