Honestly, farming is probably the place where IoT makes the most sense. Especially for very environmentally sensitive processes like winemaking, large sensor networks and data analytics offer a lot of value to the farmer.
It won't be too long in the future when the most productive farms are run by a couple local people who maintain the equipment, and every current labor-based task handling the livestock or produce is completely automatic. Imagine the power of knowing exactly every perturbation that a given crop or animal might have experienced and compare it to its yield. Eliminating variables like the productivity of the individual farmhand would go a long way to better control and extend our food supply.
You can do a lot of the same stuff with Bluetooth Low Energy and avoid putting your entire winery on the internet. I really like BLE because it's a very straightforward set of protocols for building sensor networks and sending/receiving data.
