I'm ok with rivet counters, I think there's a place for that. But you're right, it can get out of hand. Our trouble is, we like it all, from lithographed sheet metal to ultra-detailed scale. There were many hyper-detailed layouts at this show, with inspiring scenery and detail. My favorite was an HO scale intermodal yard module that stretched for...oh, must've been at least 40 feet. Another HO club had their main line weaving through a pine forest that made me shiver just looking at it.
As a kid I had American Flyer S gauge (for which I'm glad). Consequently the C+D System began in a "toy train" mode, with lots of AF operating accessories that I never had as a kid, which--I like to point out--Diana prodded me to buy.
But we never intended to confine the system to AF tinplate. (Ironically, none of the locos we ran at the NTS were AF.) Most of the layout is hi-rail, and will be increasingly so as additions are made. Detail levels will increase and sharpen on newer sections, there will be scratch-building, weathering, "aging" and other such "scale" practices.
How far will we go with it? Well, if a built-in home layout is "never finished", neither is a modular layout!
Fortunately, not all of our operating accessories are on the farm. There were more accessories--some with visitor buttons--at other locations, as Di--desperate for a break--reminds the crowd...