I deliberately buillt Twigg Street (sometimes known as Twigg Avenue) my HO "cameo" (a cameo by accident rather than design) to be set on a table and operated from a chair sat down at the front. The reason - the numerous questions about DCC, sound, Kadees- plus the basics - from a whole generation of parents who's off spring like the trains but they themselves may not have had "trainsets" in the way those of us in our late 40s and 50s may have done. People can sit down, chat and play and others watch over their heads and listen - I know that's not a true cameo scenario but it works.
....and can someone define "operating potential"? My 3 sidings with hands off uncoupling and a bit of sound keep people occupied for ages.
http://www.rmweb.co.uk/community/index.php?/topic/113995-twigg-avenue/
ATB
Chris