Hi Paul:
I am over on the West Coast here in Vancouver and I share your same problem and we only have 1 dealer and I recently even have some intention of going over to Toronto or Montreal to see if there is better deal! 
Unfortunately, I guess the reality is that there isn't much option when it comes to us folks in Canada as my understanding is that the dealers here in Canada would need to purchase equipment from US where they then purchase it from Denmark. (So there basically our dollar needs to do 2 exchanges)
The price list here changes quite frequently depending on the exchange rates and I am shocked to hear that over on the East coast that there wasn't any price changes during the period where our currency was stronger than the US?
I remember the price was quite on par with the US prices.
I recently made some purchases and would suggest discussing with the dealer to tell them that of your intention of purchases and your list of items so that they can keep an eye out for price changes, demo units, last minutes cancel from other customer or B&O promotion (i.e. the recent BEO5 promotion).
But if you are saying that between different dealers have different prices, you might be able to use that to some advantage. (So there might be a trip for me to Montreal afterall) 