The room began life as New Mexico's biggest bingo hall - then a full rebuild turned it into what its owners call the best-sounding venue in Albuquerque. The Showroom at Isleta Resort and Casino, at 11000 Broadway SE on the Pueblo of Isleta just south of Albuquerque, is a 2,200-seat concert theatre inside one of the state's largest tribal resort properties. The resort itself opened in 1999 and has grown into a full destination: a 200-plus-room hotel, a casino floor of more than 1,700 slots and t.....