I remember the fine meals served on the Santa Fe in the 1930s. For a special treat, my grandfather would take me aboard the train that came through in the morning. We would have a grand luncheon in the dining car, and get off at the next station. It was possible to catch a train going the opposite way and get back home in the evening. A great memory!

Only a few tourist type trains are fun any more. In California, I enjoyed the excursion train from Sacramento to Napa Valley. The vinyards afforded pleasant scenery, and the meal aboard was very good, if not 4-star level.
The club car on the train from Seattle to Vancouver, was good for a pleasant trip, but I don't know if it still runs.