We've all heard this bit of practical wisdom ... "If it ain't broke, don't fix it."
My modest-size train layout is wired for TMCC, the initial version:
* PowerHouse, 135w
* Command Base
* PowerMaster
* CAB1.
I'll keep it in service for as long as it works, then shift to the CAB1L version.
Years ago, I bought some Lionel LEGACY locos, not because I wanted/needed LEGACY technology, but because they were Rock Island locos - my favorite RR. However, those locos require larger radius curvatures than my current layout (built years later in a space-limited Train Room) could provide. They are on display on the wall -- eager to run if/when I expand the Train Room as a larger addition to the house. That's a BIG if/when ...
Mike Mottler LCCA 12394