I can't agree with your premise. (Analogous to saying Warren Buffet would invest in a specific set of vice grips.) But I respect the detailed and interesting article.
Allow me the joke but Buffett actually has more than 2 billion worth of shares of Acme Brick Company, Cavalier Homes and Clayton Homes.
I guess he owns plenty of vice grips.
Not sure how that relates. He doesn't invest specifically in Kobalt 8" vice grips or only in Acme's Ranchero style brick line. He invests in whole companies. The specific tools used matters very little toward success compared to the business factors.
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