SodaStream (SODA) has had a great run recently for investors as an incredible growth story in the beverages space, but is this as high as it can go? In this video, Motley Fool analyst Austin Smith tells us why he believes it isn't. He thinks that with the company's razor-and-blade model of selling the unit, then selling customers the CO2 refill canisters forever after, the company will continue to see great revenue, and its new relationship with Wal-Mart (WMT 1.09%) will also be a driver for sales. Austin also points to broader trends toward health and recycling in the U.S. that will be further tailwinds for the company.