Mainly because of his track record - he has done very well over a very long period of time. > over the last 20 years, Berkshire Hathaway had a 7% annualized RO

Mainly because of his track record - he has done very well over a very long period of time. > over the last 20 years, Berkshire Hathaway had a 7% annualized ROI while a simple Nasdaq fund had 8%. > He talks so much about (...) investing in things you know something about This kind of answers your question. The most successful companies over the past 20 years have been in tech. Buffet admits that he doesn't understand tech and that's why he isn't willing to invest. He doesn't mind missing out on opportunities and he also isn't interesting in learning.