The cost of a superyacht isn't just the purchase price. Billionaires spend tens of millions a year to maintain them. These are the biggest expenses.

On a recent episode of Ramsey Everyday Millionaires, a caller asked whether a boat costing more than his annual income was ...

Add Yahoo as a preferred source to see more of our stories on Google. As tech billionaires get wealthier, their superyachts are getting longer and more luxurious. In recent years, Mark Zuckerberg ...