I have an H0-scale model railway with a dozen or so engines and more waggons than I can count (owned by my dad, my sister (!) and me, thus the amount. No pictures as we don't have the room to put it up anywhere right now

). An the one thing I noticed during the years: If you want to build a model railway so you can play with it,
you do not want circles - those are the absolute killer. Trains can just go round and round for hours looking nice for a couple of minutes - and that's it.
If you want to play you basically need two parts: An End-of-Line station where you have to change Engines, reorganise a train, eg. and a track going for as long as you have room. Either with a turn at the end so that the Train comes back the same way it went or even a second station at the other end.
Now, before you start moaning that there is no room: with N-scale you should have no problems creating a layout that runs around the shelves of your room

'bit more of a problem with H0-scale though...
To all the people that postet pictures of their model railroad: after not having seen my own mr for quite some time, those almost made me cry
