Luxury boxes are not a magic pill sure to wildly increase revenues. Therefore, such suites should not be assumed to be a dominant part of either a renovation of Rupp Arena or the construction of a new arena in downtown Lexington. That’s what Lexington Mayor Jim Gray and University of Kentucky Athletics Director Mitch Barnhart heard on a fact-finding trip to Columbus, Ohio, earlier this month. Gray and Barnhart led a group of Lexingtonians to Columbus…