That is a lovely railway set up, Tony!
I recall as a young boy around age 5-6-7, trying to convince my parents we should assemble the American Flyer on our dining table with the flatbed cars to deliver the salt, pepper, sugar, cream, and other condiments to whomever requested them by rail. I think they took a look at me pushing the envelope (on the floor) with enough speed enough that the train tipped over repeatedly on the curves.
Gil