But can you count on their tractor DRM servers not being DoS'ed, or hacked and taken down for an extended period?
My hometown used to make a sizable chunk of the US's fasteners, and there was real concern during the Cold War that dropping a single bomb on it could cripple the entire nation's industrial capacity. Here, it seems like there may be an unacceptable strategic risk that a bomb dropped on Moline, Illinois could cripple the entire nation's food production capacity.