Warren Buffett is lauded as one of the greatest investors of all time, if not the greatest. He's the second-richest person in the world, and known as the "Oracle of Omaha" for his seemingly prescient investments. For example, in the wake of the collapse of Bear Stearns and during the height of the market panic that followed it, Buffett stepped in and negotiated a deal with Goldman Sachs. He acquired $5 billion worth of preferred shares, which would pay him a 10% dividend, as well as warrants with the rights to sell those shares at any time within 5 years from the time of the transaction. As of September this year, those warrants were "in the money" to the tune of $3.1 billion, and that doesn't include the $500 million in premium payments that Goldman pays every year. Those lucrative terms (punitive for Goldman Sachs) left others wondering why the Treasury Department could only negotiate a 5% dividend, but that only added to the mystique and legend of Warren Buffett. At the time, Buffett was quoted as saying "If I didn't think the government was going to act, I would not be doing anything this week," referring to the massive bailout bill which was indeed enacted by the government. It's deals like that that enable one to become one of the richest people in the world. But it's also that background that has some on Wall Street scratching their heads at the news that he was purchasing Burlington Northern railroad. The Wall Street Journal discussed how the acquisition seemingly broke two of Buffett's cardinal rules on investments: 1) buy undervalued stocks or companies, for obvious reasons and 2) don't split your own stocks, as it dilutes the equity of the existing shareholders. Bloomberg quoted a hedge fund principal as saying, "It could be five years before the logic of [Buffett's purchase of] Burlington Northern becomes clear." Even Buffett admits that the purchase was "not cheap" and that it represents an "all-in wager"on the future of the American economy. And there can be no doubt that it is a significant investment-- he's liquidating other rail investments totaling $691.3 million while the Burlington Northern purchase will cost some $26 billion-- an increase in his railroad holdings of some 3,600%. And this bears repeating, he's splitting stock to get it done. This is the first time ever that Berkshire Hathaway (Buffett's investment company) has split shares. He's so reluctant to split shares, the class A shares regularly trade over $100,000 per share, an unheard-of valuation.