By the end of the year, BMW motorcycle dealers in WA State will have gone from 3 to 7. This article sheds some light on it.
Didn't Honda at one time burden their dealers by mandating the dealers carry the complete product line from bikes to lawnmowers, and no other bike brands? It is possible that BMW admitted this was a deterrent? Not sure of the USA vs Canada requirements for a dealer though as this is a US story.