The bottom line

Cryptocurrency pioneer Justin Sun paid $4.57 million at a charity auction to have lunch with Warren Buffett, who once referred to Bitcoin as “rat poison squared.”

The lunch is typically held at Smith & Wollensky steak house in New York City.

Bloomberg.com

Air travelers left behind $960,105.49 in unclaimed cash in bins at TSA checkpoints last year as they dashed to catch flights, a 10 percent increase from the previous 12 months. The agency is planning to use the recovered money for “checkpoint training.”

CNBC.com

Jay-Z is the first hip-hop artist to become a billionaire. His net worth includes a $310 million champagne business, a $70 million art collection, $50 million in real estate, his $75 million music catalog, and a $70 million stake in Uber.

Forbes

Costco sold a 10-carat diamond ring for $400,000 last quarter. It’s a notable high-end sale for the wholesaler, which previously got in trouble for labeling its rings as “Tiffany” jewelry and had to pay Tiffany a $19.4 million settlement in 2017.

28 percent of Americans live alone, an increase of 23 percent since 1960, and retailers are reacting. Sales of 18-inch-wide dishwashers and 15-inch stovetops are up 30 percent since March.

The Wall Street Journal

The median out-of-pocket cost of the 49 top-selling prescription drugs increased by 76 percent between 2012 and 2017. Sixteen drugs more than doubled in price over the seven-year span. One of them, Lyrica, was raised from $174 in 2012 to $411 in 2017.

Journal of the American Medical Association