What relevance is the width of the chassis the cost of the model?

and

The Bachmann product will be made for a much smaller market than the German therefore the economies of scale should reduce costs?

Finally,

I was misinformed over the origin of manufacture of the Voith model, it seems that it is made somewhere in Germany. Does that follow that the quality is increased or merely the labour costs?

I am sure that the Voith model raises the bar in terms of fidelity and it must be a superb model.

Tim