Until the economy turned south, Las Vegas casino companies enjoyed a robust 2007, rewarding executives and leading a pair of brothers to a pot of gold at the end of their rainbow. Many executives, acting before gaming stocks plummeted, profited after selling hundreds of thousands of shares from exercised stock options and grants of stock. In a class of their own: Station Casinos Chief Executive Frank Fertitta, who in 2007 made $122.4 million in exercised options and vested stock.