...to be "accurate", or have "fun"? I know it's a bit of both, but here goes...
The 3-rail field seems quite populated with what the other scales call "fantasy" rolling stock; (usually limited runs of) trains with little or no connection with the real world. Look at all the holiday items, or as an extreme example, the "Batman" train. "Fun" seems to be the key word here. Nothing wrong with that.
On the other hand, we see comments made (which are totally valid) about the "artistic license" taken with some offerings: a recent example are the concerns regarding the new PRR H10: the color of the smoke box, the wheel base being incorrect, etc. In this case, we want our models to be as accurate as possible. Again, nothing wrong with that.
Now of course, I get it: "to each his own". I understand that one can have an equal amount of "fun" running a super detailed Mohawk or a brightly painted "Peanuts" train. I suppose a lot of this comes from the fact that the electric train was first marketed as a "toy"; as time went on, the desire for "realism" grew.
One also could wonder what goes through the minds of these "poor" manufacturers, as they attempt to cater to all these vastly different approaches. On the one hand, "we" want accuracy; on the other hand, anything goes!
I also wonder if the manufacturers look at the "prototype" modelers as a pain in the a**; after all, the modeler can point to a photo of the prototype and show a discrepancy in the model; I don't know how many photos are out there of the actual 1:1 "Neiman Marcus" steam engine and train!
Mark in Oregon