Been to Kingman a couple of times on bikes and the area looks great. Loved that ride over the mountain pass into Havasu. When is this going to take place and how did that become your destination?
The weather and the smallish town feel was the deciding factors. Not to mention, clean air will be a nice change. Kingman has a good hospital (yes, my daughter and her family will be moving as well) and all of life's necessities like Sam's, Walmart, etc.
We'll likely break ground early next year, and use it more as a vacation home for a year or so. Like you, I've ridden through the area several times, as well as explored the mountain area in the Jeep. The area is pretty awesome, but I expect it will lose the small town feel soon enough because it's getting a good reputation as a great retirement area.