When Warren Buffett speaks, people listen, but Buffett's own company has been a laggard lately....

|By:, SA News Editor

When Warren Buffett speaks, people listen, but Buffett's own company has been a laggard lately. Whitney Tilson thinks Berkshire Hathaway (BRK.A +0.3%) is now a buy: It's cheap, has huge cash assets, and Buffett's not going anywhere anytime soon. Wedgewood Partners' David Rolfe tells Barron’s he believes shares are worth at least $170K.