On my RR I have a large quantity of 10 ga, 12 ga, 14 ga and 18ga of wire on a fairly large layout with zero maintenance issues.
Yes it does take some time to hang it safely and connect it securely and no I am not finished but I am done.
Several of my peninsula additions do not have an inch of wire so my growing assortment of battery r/c locos have a designated play area.
If I was starting over again there are two things I would change:
1.- The layout would be smaller and simpler.
2.- I would only use full featured battery R/C power.