As the overall luxury real estate market has sagged in New York City, the billionaire set is still on the make, sending handlers to scout out penthouses and townhouses and finalizing transactions left and right. Here’s a look at some key numbers surrounding the set of buyers who make top NYC developers and high-end sellers salivate. And for more on NYC’s billionaire buying frenzy read the full story here. 2,604 The number of billionaires worldwide […]