Yeah, they cost a lot, but in my case, no where near what the truck cost. But the truck carries my family on vacations (and emergency trips too), used to haul my rock crawler buggy all over the SW US, and part of it's purpose (for me) is to look good and protect it while doing it. If I had one of those state maps, it would all be colored except the NE and NC US, and several non-stop AZ to AL.
My welder(s), lathe, mill, and many other things are comparable in price to the tractor, but again, I wipe them down, keep them clean and functional, but no wax. Some of my high density storage units cost new over $3k (Vidmar, Lyonn, New Era), and they don't get waxed either. Like I said, different mental boxes. And I grew up on farm land in N AL, so maybe that's part of it too. My grandfather and the rest of those ol' boys would laugh themselves right off their feet if they saw someone waxing a tractor. Truth be told, most didn't wash their trucks either, like tractors, they were tools to be taken care of and used, not pampered. Pressure wash it, keep it clean, sure, but waxing... would never have crossed their minds...