Investors anxiously await the quarterly release of Berkshire Hathaway's (NYSE: BRK.A)(NYSE: BRK.B) 13-F regulatory filing. It reveals which stocks Warren Buffett's holding company bought and sold during each quarter, and that gives investors lots of food for thought about investments.

The third-quarter filing offered some interesting news for Buffett-followers, such as a new position in building products company Louisiana-Pacific. Along similar lines, Berkshire Hathaway expanded its position in luxury furniture company RH (NYSE: RH). Let's take a look at why Buffett likes this cheap stock, and why you might want to consider it for your portfolio as well.

Buffett has said in the past that every great business has a moat. A moat is a competitive advantage that's enduring, and it can be any differentiating factor that gives the company an edge against competition.

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Source Fool.com