Each January, we anxiously await the start of the Barrett-Jackson car auction. The cars are cool, but we're really there to check out the crowd, who come from all over the world to ogle these fine autos. And what a diverse crowd it is: You've got your celebrities and other mega-rich collectors, there to buy and sell some of the rarest, most expensive cars in the world; the Scottsdale types looking to see and be seen; the auto aficionados who buy and sell the less-pricey vehicles that make up the bulk of the auction; the dads and their kids; the people who are really interested in high-end motorhomes; the brand loyalists roaming the halls in Ford or Chevy T-shirts; and the vendors selling everything from faux vintage metal signs to boats. It's a diverse, high-energy crush of folks that's just as head-turning as the thousands of cars on display.