OMAHA, Neb. (The Street) --  Warren Buffett knows a lot of things, including how to put on a good party for the thousands of Berkshire Hathaway (BRK.A)  (BRK.B) shareholders who descended on Omaha, Nebraska, this past weekend for the company's annual meeting.

The meeting marked the golden anniversary of Buffett taking control of Berkshire. Over those 50 years, Buffett became a billionaire, and some shareholders who bought and held Berkshire Hathaway stock have became millionaires.

No wonder there was so much celebrating going on. There were shareholder shopping sprees, cocktail parties, and for the fortunate, a chance to see Warren Buffett up close and personal as he walked the convention floor before the start of the annual meeting.

Lucky for them, the party isn't over yet.

Buffett, who's 84, has given absolutely no indication that he's planning to retire anytime soon.

"He loves doing it," said Carol Loomis, a veteran journalist who edits Buffett's annual letter to shareholders. "He says 'I'm having fun.' He wouldn't be doing it if he wasn't having fun."

Speaking of fun, the movie shown ahead of the annual meeting featured a spoof with Buffett in the boxing ring ready to spar with none other that Floyd Mayweather, who went on to win a boxing match against Manny Pacquaio later that night in Las Vegas. Buffett in gym shorts and boxing gloves! Shareholders loved it. Buffett may look like your grandfather, but he'd rather stay in the ring than sit in a rocking chair.

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