One of my whinges about Bachmann new releases is the concentration on locomotives but not the things they pull. Perhaps a reversion to the 'train set' concept would resolve this. It needn't be too much for the NRM to organise, they have the resources. The LYR tank could have come out with four LYR carriages for example. I would certainly have bought that, if only because it would be a nice thing to have. The Ivatt 2-6-2T could easily be marketed with two or three push-pull coaches and such a thing would be a definite purchase for me.
Similarly for freight, the LYR tank, very much a mixed traffic type, could be marketed with an LYR brake van and a few PO wagons from the LYR area and again the Ivatt with a brake van and some wagons/vans. I could add more and more ...
Regards