Warren Buffett, chairman of the board and CEO of Berkshire Hathaway, which made a big purchase on Monday. - 

More than 30,000 people are just getting back from Omaha, the site of this year's superbowl of capitalism, otherwise known as the annual meeting of Warren Buffett's Berkshire Hathaway company. One single Class A stock in Berkshire Hathaway costs $192,000, although there is the economy model, the Berkshire Class B for $128 this morning. Buffett emphasized that big acquisitions, not clever investing in stocks, is the way forward for Berkshire. Michael de la Merced who writes for the New York Times Dealbook section sat through Buffett-Palooza, and joined us to discuss.

Today is Cinco de Mayo, the celebration of Mexican culture and heritage. But one component of the celebration is getting a lot more expensive. Limes. Limes for the tacos. Limes for the drinks. And you may be interested to know the reason for that is connected to a drug cartel. Marketplace's Stacey Vanek Smith reports.

And, I've started a new blog today at Marketplace.org and as the week goes on some of my colleagues here at Marketplace will be doing the same. Kai Ryssdal, Lizzie O'Leary, and Paddy Hirsch included. My thing is going to be called "Indie Economics." Today I'll start with a diet that will make you smarter: the salubrious effects of adding one documentary film or other smart movie to your media diet. Once a week is is all it takes and you, too, can use words like "salubrious."


Follow David Brancaccio at @DavidBrancaccio