I spent an afternoon in Scottsdale, Arizona's most elite neighborhood, where homes cost up to $50 million. It felt like a private small town.

Joey Hadden/Business Insider

• DC Ranch is the priciest neighborhood in Scottsdale, Arizona, with an average home price of $3.3 million.
• The sprawling 4,400-acre community includes four villages of mansions, condos, and businesses.
• I got an exclusive tour of the neighborhood and thought it felt like a small town.

The most expensive neighborhood in Scottsdale...