I think the point is what is the subject and what is the final output. There is no one right format. We used vertical plasmas screens on our television event shows 20 years ago. Obviously the video had to be designed for a vertical format.
Now train layouts are about the most horizontal thing going. A basement layout might be 50' long and about a foot tall, maybe 2-3' with a backdrop. So shooting that in a vertical format is just frustrating to the viewer, like looking at trains from outside through a window.
Quality seems to be another issue entirely. I'd be curious as to what kind of rigs people use to get good steady video of trains, especially with a smart phone. Tripods? Dollies? Cameras on trains?
