The most outrageous splurges of tech billionaires, from Richard Branson's private island to Jeff Bezos' $65 million private jet

• Tech billionaires have been known to make extravagant purchases from time to time.
• Amazon founder Jeff Bezos spent $65 million dollars on an eight-seater private jet, while Elon Musk splurged on the submarine car from the James Bond film "The Spy Who Loved Me."
• Check out 23 of the most outrageous purchases made by tech billionaires.

The richest people in tech are some of the world's biggest billionaires - and have plenty of money to spare for extravagant purchases.

While many of these tech billionaires - including Microsoft's Bill Gates and Facebook's Mark Zuckerberg - focus on philanthropy, these moguls have still indulged in luxuries over the years.

Read more: An entrepreneur who interviewed 21 billionaires says there's a common misconception about how the world's richest people spend their money

Big splurges include impressive forms of transportation, from superyachts and private jets to custom car collections. Real-estate portfolios are made up of elaborate homes for those based in Silicon Valley, along with private ranches and island getaways. Additionally, atypical indulgences range from Michael Dell's rare photo collection to Sergey Brin's private trapeze lessons.

Keep reading for a look at some of tech billionaires' most outrageous indulgences.