Visa (NYSE: V), the world's largest card payment network operator, went public at a split-adjusted price of $11 per share on March 19, 2008. Today, it trades at about $300, so a $10,000 investment in its IPO would be worth more than $272,700 today. Let's see why Visa's stock soared -- and if it can generate even more life-changing gains over the next few decades. Why did Visa's stock rally? Visa, like its chief competitor Mastercard (NYSE: MA), doesn't issue any of its own cards. It only partners with ba ...