Agree, it does make you wonder. The book notes that the Baldwin wasn't popular at the works (was not re-painted or numbered), & seems was just laid up after the works purchased other locos.
Back on-topic, I have both a Minitrains Baldwin & 2 Bachmann Baldwins. They all run very well & smoothly. To be honest I prefer the Bachmann models but mostly because the Minitrains one is HOe & looks small although this is due to change as I am currently building a replacement 4mm scale body for it.
Baz