Astrid Buffett was heard at "summer camp for billionaires" complaining about $4 coffee, the New York Post reports. US coffee shops charge an average of nearly $5 per cup of coffee, according to a previous Insider report. Astrid's husband, Warren Buffett, is known to be frugal. He's the 7th-richest person in the world. Astrid Buffett, the wife of billionaire investor Warren Buffett, was overheard at Allen & Co's annual event in Sun Valley, Idaho, griping to resort employees about the price of coffee, the New York Post reports.

https://finance.yahoo.com/news/warren-buffetts-wife-astrid-overheard-172355739.html

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