Share 'Insulating a garage in hot dry climate?'

I do not believe it makes sense to insulate a garage in a hot climate like the desert southwest. This assumes the homeowner does NOT plan to condition the space. I get many customers asking me to do it and I try to persuade them not to. I am wanting some opinions on this as I have a hard time explaining why. The jist of my argument is that the garage will still get as hot or hotter than it is out…