What's slowing the use of robots in the ag industry?

Why are so many farm equipment manufacturers so heavily involved in the ag industry yet things are going so slowly in relation to robotics? Perhaps farmers need to first incorporate the digital era -- and the concepts and practices of precision agriculture -- before taking the next step toward the use of robots. Two traditional qualifiers for farmers buying new equipment are flexibility and return on investment. Precision agriculture isn't just rhetoric; it's real-time intelligence flowing into analytics software that transforms that flow into meaningful, practical information that farm managers can react to quickly. That data -- and that process -- have costs and, for the last few years, farmers have been stretched because commodity prices are down.