I was at a fundraiser for the American Cancer Society in Palm Beach last night. I was actually surprised at the number of people that had a "correct" black tie outfit, probably close to half. Saw several shawl lapel jackets too. Donald Trump was the emcee and wore black wingtip balmorals and a jacket that was probably an inch too long in the sleeves. I doubt he cared.
Given who retires to Palm Beach I would imagine that this is one place you'd see a good number of correct ensembles.