The first thing I notice on entering the store is the smell. It is an earthy sandalwood mixed with some type of citrus, perhaps sour lemon. It tells me I am in the right place, because I am here to buy cannabis. On my left sits a smoking lounge with four booths facing large windows that look out on an upscale South Austin shopping center. To my right, behind a glass window, is a demonstration grow room—more for show than large-scale cultivation. Straight ahead, on the back wall, a large lacquered-wood cabinet looks like something out of an old-fashioned drugstore. Its shelves hold a cannabinoid cornucopia: cookies, gummies, tinctures, machine-rolled joints, and glass containers half-filled with tightly clumped plant buds.Another customer enters and makes a…