 Las Vegas-based John Decree, director of equity research at CBRE Group, a commercial real estate firm, says the two gaming companies have several key advantages, including ample room inventory, desirable center strip locations, and greater appeal to price-sensitive guests. The elimination of the Tropicana Mirage rooms will reduce available supply on the strip by 4.9 percent. Of the two properties, the Mirage's closing is more likely to move the needle in terms of opportunity for other operators.