Resurrecting this thread!!
I have a train layout, in N scale (1:160). I've been working on it much more since summer started, maybe I'll post some pics after I clean it up (right now it has modelling supplies all over it lol).
Model railroading it a lot of fun because it combines many different skills, including wiring and electrical stuff, history and research, painting, assembling models, creating scenery, and learning how locomotives and associated industries work.