One thing we haven't discussed yet is the nice people you will find in SD. Here's an example. One day at The mammoth Site, I went for a ride with my boss in his recently refurbished 1969 Jeep. With the city of Hot Springs, and close to TMS, we had a problem with the clutch linkage and pulled over to the side of the road. Within five minutes, three separate strangers stopped and asked if we needed any help.
Try that in most places in SoCal, and you will create the mother of all sig alerts. Maybe one car can stop, but everyone else should just keep on going, and maybe use their cell phones. Perhaps its the fundamental difference between urban and rural situations. Arizona ranchers, in my experience, are pretty helpful, as well.
Now, if I like SD so much (and I do), why don't I pull up stakes and move there? SoCal has its attractions, and frankly, I am at an age where I am grateful to be living, never mind where..
Geezer in Chief