10 years ago when the dot-com bubble burst, and with it a slew of services claiming to disrupt various levels of the retail value chain, a small number of sustainable, truly disruptive e-commerce models managed to survive. Many of these companies - the Amazons, eBays, and Zappos of the world - live still, some stronger than ever, and have left in the wake of their survival a ghost town of physical retail chains unable to compete with the prices and underlying cost structures of their digital counterparts.