Brian - thanks for the lengthy reply. Please post a photo of your layout -- I'm rather intrigued to see what you've done. Also interested in your suggestion to REMOVE a loop or two. Never thought about that. I tried the 1 train layout once and quickly ended it. Watching one train going around wasn't something I liked but I didn't have a variety of sidings, and routes and the time.
As for your elevated track of accessory cars, do you run them or are they just on display? Again, would love to see photos.
Yeah, I agree, sometimes a photo is worth a thousand words. I'm old school... I have a digital camera now, but it's not my old Rollei, so I'm still trying to figure it out.
I agree that a single loop mainline "could" be boring, which is why all my signals are button activated. And the MRC Sound Station has buttons for diesel idling, bell, conductor, crossing gate bell, etc. Railsounds it's not, but since it is all push button activated, there's one more activity to add variety to a single loop operation. Again, operating cars also add variety.
My overhead track is mounted high enough (made my own "trestles") to clear everything. It has constant power, with a variety of cars stationed on it. So if I want the aquarium car to operate, as I mentioned, a slight move to the left, and it is operating. A searchlight car or two adds more illumination to the layout.
Some of the modern Lionel operating cars have an off/on button beneath the car. But since that's a little awkward to reach, the drinking straw insulator over the center rail is a much more convenient on/off switch.
All my trees are mounted in bases I made, so they can be moved around... again, a little more variety. A couple buildings, like a customized K-Line diner are in place because I also added a smoke unit to the building. BUT others can easily be moved and switched... again, adding variety to a small layout.
It's really all a matter of what makes you happy (and what you can afford, too). For some here, operating less-than-scale might be torture. Or running without command control and full digital sound. The constant sound would be annoying to me, and I prefer the control aspect of push button activation.
One more point as an 027 operator: The non-derail feature on the 027 Lionel switch is from track power, rather than auxiliary power like the 0 gauge switch. The 027 switches can be rewired with some effort. But for this reason, I use manual switches. Far away ones can easily be operated with nylon fishline from the front of the layout. I also modified the manual switch box housing, removing the very top part indicator, filling the slot, and then painted it silver, with a couple of small red/green colored indicators just above the control lever, so it's easier to tell which way the switch is set.
I do the hobby on a budget and I'm pleased. I love it when I read here that traditional 027 trains and 027 track have gone the way of the do-do bird. What a laugh!
More than likely, when some folks high-end expensive trains stop working and parts are not available, mine will STILL be running. NO shelf queens on my layout.
And my layout might be small, but I have a layout. There's compromises to everything. I'd rather have a permanent layout and run traditional 027, than be amassing a collection of scale sized trains with no where to run them but on a floor layout... but that's my choice.