Anyone that says his/her layout is “Done” has no idea of what model railroading, especialy the outdoor variety, is all about, as a hobby.
A model railroad has to grow, along with the person that builds it. Just like a real railroad is never “Finished” or is done. Anyone with a true hobby, grows with his hobby, if he and his intrests, are to last and still be fun.
There are always improvements to be made, to any railroad. Changes keep the hobby alive.
In my many years in the hobby; I've seen too many people, say that their railrod is "Finished".....and shortly after, they get bored, and the sale signs go up; and they are of looking at some other interest, that won't please them for long, as they get bored with it too.
This is why we see so many people that build "Roundy-Roundies" getting bored....after a while, the question comes up..."What else will it do"....or....I built it for the grandchildren, but they aren't interested any more....no-wonder; children of today, after watching the trains go round and round, are the ones asking "What else will it do"
Building a model railroad, can be an education, along with being a hobby…teach what the railroad industry is all about, while learning about electricity, electronics, carpentry, and many of the arts. History can be part of the education, along with the fellowship you get, from the great people in the hobby.
NEVER, NEVER, let your railroad be done, or finished…let yourself grow, along with your hobby…PLEASE.