Investors in Warren Buffett and Berkshire Hathaway (BRK.B -0.26%) are not just investing in an insurance company. Buffett has slowly built a massive conglomerate of numerous different businesses that's now valued at over $250 billion. In this video, Fool financial analysts David Hanson and Matt Koppenheffer discuss whether Buffett's businesses as a whole are more attractive than individual companies that are stand-alone, public companies.