When it comes to seeking out a financial advisor, you could do worse than to invest your time learning from one of the richest men in the world. Warren Buffett, sometimes called the "Oracle of

But Buffett hasn't lost his enamor with all stocks. The "Oracle of Omaha" has even invested $2.9 billion in one stock this year. What is it -- and is it a no-brainer buy now?

Warren Buffett passing on purchasing shares of Berkshire's stock when his company's cash pile is sitting at a record high ($325 billion) signifies that one of Wall Street's most ardent value investors is struggling to find a good deal. Berkshire's price-to-book value recently hit levels that haven't been consistently observed since 2008.