Life Time Group (LTH) took over the site of Tampa's Harbour Island Athletic Club, which was struggling to make rent, in April 2023. It reopened 15 months later with a waitlist of 12,000 despite seemingly "crazy" prices of $339 a month and a $1,000 initiation fee, Northland Capital Markets analyst Owen Rickert told Investor's Business Daily. Exemplifying Life Time's luxury…