I think it was the reality of there being nothing else economically viable.
I can give you an example from my own personal life. I had a Husqvarna chainsaw for 20 years—pretty much my entire adult life. It was a two-stroke engine. What do I have now? I have a Makita chainsaw with two 18- or 24-volt batteries. I can take them out and put them in my drill, then take them out and put them in my chainsaw. When I'm done with that, I can put them in my Makita grass trimmer. When I'm done that, I can use them in my Makita battery-driven blower.
Those aren't options for drying grain in agriculture today. Believe me, if farmers had the viable option of putting one of Elon Musk's beautiful batteries into their vehicle, I know they would do it. It would only make sense if they could operate it for 24 hours in a row. Those options aren't available.