Whenever I think the bar can't possibly go any higher in the world of luxurious hotels, I come across yet another out of this world establishment. I attended a private event at the recently opened trés elegant Baccarat Hotel on West 53rd Street, across from the Museum of Modern Art.  The hotel was designed with exquisite execution by the Paris-based design team, Gilles & Boissier, in what appears to be a no-expense-spared endeavor.