Beetle for his half of the business. Monaghan dropped sub sandwiches from the menu and focused on delivery to college campuses, inventing a new insulated pizza box to improve delivery. The new box, unlike its chipboard predecessors, could be stacked without crushing the pizzas inside, permitting more pizzas per trip, and keeping them warm until they arrived. As Monaghan spread his model to other college towns through a tightly controlled franchising system, by the mid-1980s there were nearly three new Domino's franchises opening every day. In 1989, the National Organization for Women (NOW) called for a boycott of Domino's because of his active opposition to abortion, but it is unclear what effect, if any, that had on the company's sales. In 1998, Monaghan reportedly sold his 93% of stock ownership of Domino's Pizza to Bain Capital, an investment firm based in Boston, for an estimated $1 billion. Domino's Pizza is an American restaurant chain and the international franchise pizza delivery corporation is headquartered at the Domino's Farms Office Park (the campus itself owned by Monaghan) in Ann Arbor Township, Michigan, United States, near Ann Arbor. Gyrene Burger Company In December 2011, Monaghan embarked on his second quick service restaurant brand by starting Gyrene Burger Company. The military-themed burger delivery concept was a throwback to Monaghan's days in the U.S. Marines. The term "Gyrene" was used in the 1940s and 1950s as a nickname for Marines. At Gyrene Burger, Monaghan provided franchise incentives to eligible Marines and veterans of the other military branches. The flagship store for the brand was located in Naples, FL, before relocating to Knoxville, TN. As of August 2018, no locations are in operation. Leisure The wealth Monaghan amassed from Domino's Pizza enabled a lavish lifestyle. However, after reading a passage by C. S. Lewis on pride (from Mere Christianity), Monaghan divested himself of most of his more ostentatious possessions, including the Detroit Tigers in 1992. He gave up his lavish office suite at Domino's headquarters, replete with leather-tiled floors and an array of expensive Frank Lloyd Wright furnishings, turning it into a corporate reception room. He also ceased construction on a huge Wright-inspired mansion that was to be his home. (The house remains half-finished.) Detroit Tigers In 1983, Monaghan bought the Detroit Tigers, who won the World Series a year later. In 1984, he received the Golden Plate Award of the American Academy of Achievement. He