It's great that Bachmann have done this, of course it is. But ... I'm left with much the same feeling as I have when one of the preserved railways announce the appearance of a pre-group engine for a gala. Where is the pre-group stock? Or even the post-group? The answer is of course that there isn't much because very few people could be interested in preserving it when it was around. Now RTR manufacturers seem to be doing the pre-group engines but there isn't much interest in doing the coaching stock. History, after a fashion, is repeating itself.
The 'train set' concept could work here.
Regards