@Will Ebbert posted:As far as powered units go, a B unit is no different than an A unit. It seems model railroaders have just mentally made them different and feel the price should be lower since they aren't as pretty. I have a TMCC super bass B unit which sounds fantastic. I'm sure with Legacy RS they're even better. I run prototypical consists so if the real thing had a B unit so will I. As for powered/ unpowered, generally 2 powered units are enough for my layout.
The actual and perceived difference includes the fact that A units include a cab (usually illuminated and with figures, sometimes with some degree of interior detail), along with operating headlights, number boards, and marker lights. less detail and operating features tend to draw conclusions that the B unit price should be lower.
