There's a Man & his Wife that comes to the Plant City, Fla. train shows in March every year or almost every year & they have a Modular layout that is about 20ft long & 6ft wide in HO scale & they have some weird stuff that happens on the whole layout. Earthquakes, big buildings on fire, buildings being demolished, war zone, Space ship attacking earth, flood, large train wrecks, train hitting a semi, dinosaurs attacking a city & a Dragon w/fire shooting out of his mouth. All of these are mechanical operating all the times the trains are running. The layout really looks like crap, but, they get a lot of people taking pictures & the kids love it.
...and it doesnt make that much a difference anyway as long as you are having fun
...and there you go ... the true heart of why we do what we do.