Long-time investors have gotten rich from this leader in streaming entertainment.Netflix (NFLX 0.57%) completely upended the entertainment industry by introducing streaming video to the masses. Thanks to its tremendous success, the business has been a huge winner for investors. In the past two decades, shares have skyrocketed 15,720%.This streaming stock is now one of the world's most high-valuation enterprises, with a market cap of $244 billion. But it still has the potential to continue rewarding sharehol ...