Layout TOO big? I think not! Mine is about 22' X 24' overall, and on four distinct but connected levels. 750' of track, 65 switches, TMCC, Legacy and DCS control. Started on it in 1998 and I'm still working on it. But, you know what? It's still too small! Now, if I could make it larger, and I can't in it's present location, I'd need more people to help with all the related projects.
But the key is that in the last 15 or 16 years, it has kept me busy, provided entertainment and a showplace for friends and visitors. I haven't worked on it continuously fpr all these years, but rather, I've done projects as I felt the "inspiration" all along. Sometimes I might not work on it for weeks at a time but other times, I might be plugging away, virtually every day.
Had a group of people over today and they seemed to enjoy it as they stayed downstairs for about 3 hours. Experiences like that are very rewarding.
IF, and that's a big IF, I had more space, I would have built an even larger layout with a lot more trackage and more operating potential. My inspiration was always Frank Ellison's Delta lines, which was perhaps 5 times the size of my layout. And if I would have had the space and the wherewithal, I would have built a similar layout and shared it with a lot of other people. But at my age, now, what I have now certainly will be my final layout effort.
Paul Fischer