I visited the most expensive cities in Utah and Arizona. There's only one I'd consider moving to.

Paradise Valley, Arizona, and Park City, Utah, are wealthy hot spots in the US.

Joey Hadden/Business Insider

• Wealthy individuals are moving to luxury estates in Paradise Valley, Arizona, and Park City, Utah.
• Both areas offer privacy, nature access, and proximity to business hubs.
• I visited both and found there were also key differences. Only one would suit my lifestyle.

From the "Beverly Hills of Arizona" to Utah's Silicon Slopes, the most expensive cities in these states have one thing in common...