In 1916, John D. Rockefeller became the world's first billionaire. As of last year, there are over 1,800 billionaires across the globe. But what do the filthy rich spend their money on? We know they've bought mansions, fancy cars, and donated generously to charities (or at least we'd hope so), but we want to know the details. So, we've compiled a list of 25 things that only those making six figures or more could afford. If you could, would you spend money any of these things? If not, what would you add to the list?