The dominant discourse when you talk to many OEMs is that this is a defensive play to be prepared for all those secretive inventions that Google and Apple are making in their X-Labs. They don't know what's coming so they are throwing everything at it to "cloud-wash" and "IoT-wash" their offerings even when their customers are justifiably scared about the risks of cyber-attacks that connected machines bring into their factories and plants.
In short, not enough RoI evident for the investments and changes in processes IoT mandates in the enterprise - especially in the production plants. However, based on my discussion with all the different actors, its likely that we'll find use cases in either Operations Optimization or Asset Optimization.