In 2015, a Chinese billionaire bought a US$170 million painting by with his credit card so he could use the points for free airfare. – WTF Fun Facts
Source: https://www.mercurynews.com/2015/11/23/family-will-fly-free-for-life-after-170m-purchase-on-american-express-black-card/
WTF Fun Fact – Millions Of Miles
Yeah cause a billionaire needs free travel
He not only did it for him but the rest of his family could fly free for life!