That industry is in a state of flux right now. It's historically earned very good returns on invested capital but it could well be that the world will unfold differently in the future than in the past. I'm not sure I can give you a good answer on that.
Warren Edward Buffett (born August 30, 1930) is an American business magnate, investor, and philanthropist. He is considered by some to be one of the most successful investors in the world, and as of March 2017 is the second wealthiest person in the United States, and the fourth wealthiest in the world, with a total net worth of $73.3 billion.
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