Investors shouldn't unthinkingly follow Buffett, or any other billionaire money manager, into Amazon or any other stock. However, Amazon is a top stock with robust opportunities trading at an attractive valuation, and if you have $500 available today, Amazon is an excellent choice.

Despite being a net seller of stocks to the tune of $166 billion over the last eight quarters, there are two premier stocks the Oracle of Omaha can't stop buying.

Warren Buffett didn't become one of the world's richest people by selling stocks just to turn a quick profit. Instead, his investing philosophy is built around buying shares of high-quality