Billionaire Warren Buffett has again auctioned off a private lunch to raise money for a San Francisco homeless charity, and this time the meal goes to the highest bidder for $3.4 million.  The bid of $3,456,789 from Friday night’s winner, who wishes to remain anonymous, ties for the record highest. In 2012, the winner also paid $3,456,789 to become the most expensive individual charity item ever sold on eBay.  The […]