To make the most of its new home at Mandalay Bay, the LUXURY at JCK show expands to seven full daysLUXURY at JCK, a sister event to the main JCK show taking place in Las Vegas this month, has long been distinguished by its intimacy and roster of high-end vendors. But for years, buyers who weren’t invited missed out on the three-day affair. This year, the lack of an invite won’t be a problem. For the first time in its 12-year history, the show will take place over the course of seven full days—May 31 to June 6 at the Mandalay Bay Ballroom—overlapping the entire four-day JCK Las Vegas show. Although the first three days of LUXURY are still, according to tradition, invitation only, the event opens up to all JCK buyers for the last four days of its run. Executives at JCK Events—the organizers of both the LUXURY show and the main JCK Las Vegas show—say extending the LUXURY date