The reasons to love Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) are numerous. It's led by one of the greatest CEOs and investors of all time, it has a collection of market-leading businesses, and has made droves of investors rich. Despite all of these reasons to buy shares Warren Buffett's empire, there are some reasons to be concerned.

In this segment from Friday's Where the Money Is, Motley Fool senior analyst with the Million-Dollar Portfolio service Mike Olsen sits down with financial analyst Matt Koppenheffer, to discuss all things Berkshire Hathaway. Mike highlights multiple reasons some investors stay away from Berkshire's stock -- such as the overall size of the company and Buffett's previously stated price in which he would buy back shares of the company. While he acknowledges these arguments, Mike continues to believe the shares are undervalued at today's price and present investors with an attractive opportunity to marginally outperform the broader market going forward.