That is an amazing shop.
If.............a massive if..........I ever had a huge shop, I would break it up into smaller sections. The height and size of the building is great for big equipment, but that is a lot of cubic feet of air to keep at a decent temperature. For an average shop, an 8-10 foot ceiling would be nice for a general work area and then maybe another closed off section for a lift and taller work. The comment about storing trucks in a climate controlled building not being cost effective makes sense at first, but then if you consider that the temperature could get below freezing in an unheated shop, it makes sense to have the equipment at a temperature that is ready to be started up and used, without needing engine heaters.
I wonder if they used in floor heat, and if anyone with that setup has different zones so that vehicle storage can be kept just above freezing, but the work area can be kept at a nice working temp.