IMHO, DSC model (subscription based company directly owning supplier to consumer chain, offering nice price + convencience) is the way to disrupt incumbents in consumer goods even though they will never get as big or as strong. there are lots of products which we do not care which brand we purchase as long as a certain level of quality and on-time sufficient delivery is ensured. i would definitely subscribe to a service which analyzes my consumption and delivers all "non-critical" products to my home/work location.