@Will posted:I think the big positives that Jeff pointed out are eliminating all that wiring under the layout and the ability to change track layout easily. That alone is a game changer. Not to mention transformers. That's a lot of money saved. Think of Christmas and floor loops with no wire.
Just to point out that I don't do "all that wiring" right now. Legacy-Lite and DCS on the rails, and LionChief+ or DCS in the locos, with two wires to the tracks (two power drops due to resistance). I am powering my FasTrack turnouts in command control - no control wires, and they take power from the constant voltage on the rails.
This part of the future is already here!
One still needs enough transformer power to run everything, and power blocks are advised for large layouts. I have two CW80s ganged together for my small layout, and the power roll-back when a short happens works very well.
But its not yet cheap, the command control turnouts are expensive, and then there is the cost of the command control systems - a one-time purchase so far.
