I would be interested in getting reaction from anyone who has been on the Tauck Copper Canyon by Private Train tour

I looked closely at Tauck Tours for private train car and deluxe hotels. Also looked at others like collette and globus, but settled on a smaller company called CAravan tours, they had a tour with private train car, going both directions and they same hotels as Tauck and all meals, for about a third the price. Anyway had a great time. So, I have not taken the Tauck tour, but can tell you the CAravan Tour was very good.

good luck