According to Bloomberg, Amazon has looked at the possibility of expanding its retail footprint by acquiring some locations from bankrupt Toys R Us. “The online giant isn’t interested in maintaining the Toys R Us brand, but has considered using the soon-to-be-vacant spaces for its own purposes,” reports Bloomberg. From the report: Such a move would let Amazon quickly expand its brick-and-mortar presence, coming on the heels of buying Whole Foods and its more than 450 locations last year. The Seattle-based company also has opened its own line of bookstores and a convenience-store concept. Additional stores would give Amazon space to showcase its popular Echo line of devices, which run on the Alexa voice-activated platform. Amazon sees voice as the next interface for people to access technology — supplanting computer mouses and touch screens — and the benefits may be easier to demonstrate in a real-world setting. A bigger network of stores would put inventory closer to where shoppers live, potentially enabling quick delivery to e-commerce customers. The space could also serve as a staging ground for grocery delivery from Whole Foods stores. Amazon is already planning to roll out free two-hour service to Whole Foods customers in four cities, including Dallas and Cincinnati.