Throughout history, humans have sought the mythical city of gold, Eldorado. Explorer, Sir Walter Raleigh essentially spent his life searching for it, but never succeeded. Eldorado represents something much sought after, but something that may not even exist. For centuries, humans have also been searching for a perfect investment vehicle. There is a long history of fads and fashionable new strategies that, at the time, offered a seemingly simple, dependable solution. Often these fads have led to overuse (manias) and then disillusionment.