Recent interest in Upper Paleolithic small prey acquisition focuses on the significance of fiber-based hunting technologies. Some researchers believe the advent of these technologies and presence of small faunas reflect efficient communal net-hunts driven by women's labor. We evaluate different small prey hunting techniques, using ethnographic data from foragers in the Congo Basin. These and other ethnographic data suggest that net-hunting is a high risk endeavor that often has high opportunity costs. We argue that the high costs associated with net-hunting have profound implications for human technological choice, and we evaluate the circumstances that would favor the use of different small prey hunting technologies in the Upper Paleolithic.