Miami is now the second-most expensive metro area in the US. These CEOs are fueling its billionaire boom.

Starbucks' former CEO Howard Schultz and Jeff Bezos have recently relocated to Miami, while figures like Mark Zuckerberg have recently purchased property in the city. Pier Marco Tacca/Getty Images/Alexander Tamargo/Getty Images for America Business Forum/Jeff Bottari/Zuffa LLC Miami was recently ranked as the US metro area with the second-highest cost of living. Tax proposals in California and New York are pushing billionaires to Florida. Mark Zuckerberg, Larry Page, and Sergey Brin have all…