I read both Jobs and Buffett's biographies (Steve Jobs & The Snowball). I understand these guys' mindsets reasonably well. The article says that, ironically, B

I read both Jobs and Buffett's biographies (Steve Jobs & The Snowball). I understand these guys' mindsets reasonably well. The article says that, ironically, Buffett himself never bought Apple stock. The reason is simple. Buffett is an extremely cautious investor who only invested in businesses he understood perfectly, down to how the products were made, what made them superior to competitors, what the cost was of each part, who were the suppliers, etc. Buffett has always admitted he is not a technology guy. During the dotcom bubble, for example, he never invested a single penny in any of the Internet companies. The advice that Buffett gave to Jobs ("if you think your stock is undervalued, then buy it back") is perfectly logical (after all, who better than the Apple CEO would understand perfectly his own business?), but for that same reason (Buffett not being familiar with this business), it was also logical for Buffett to not buy Apple stock.