I built a small test track.... ....that is ideal for testing DC locos before converting them to DCC. Great for programming the DCC ones. Great in that it got me around to building a cheap DCC-EX Command Station. Great to come up with layout wiring ideas that I'm using now. Great for learning about laying track. Great for learning how to hand-lay turnouts. Great for testing turnout control and wiring options. Great for things I've forgotten. Great for just getting to run a train around in circles and do a little switching. It rolls under the main layout and has the main DCC-EX command station on it. I don't ever see not using it for a number of the things mentioned above. More on it ( HERE ). Yes time to start building.....you will be glad once you do Sumner