For many people, being extremely wealthy is seen as the ultimate prize and the key to a life of glamorous ease. But having huge amounts of money can actually lead to a bewildering number of problems. Research, such as this study by Princeton University, has shown that people don't actually feel any happier after they earn over a certain amount of money. Read on as we explore the myriad of issues that the uber-rich have to face, which might make you feel grateful that you're not one of them.