Tech stocks have a long reputation for providing consistent and significant gains to patient investors. The chart below reflects this, with the Nasdaq-100 Technology Sector index delivering considerably more growth than the Nasdaq Composite and S&P 500 over the last decade. So, it's not surprising that Warren Buffett's holding company, Berkshire Hathaway, has dedicated more than 40% of its portfolio to the high-growth industry. Meanwhile, Berkshire's holdings posted a compound annual gain of nearly 20% betw ...