Re: consistant pricing: The dealers need to make money in order to survive. Everything is fine until one of them 'breaks rank' and advertises for a cheaper price and then the others are forced to follow suit. They don't have to speak to each other for this to happen. The margins on equipment is not what it was and bills have to be paid. Factor in returns, warranty repairs, shipping costs etc in addition to existing running costs and that money has to come from somewhere.
I know from my own experience that margins can be very poor, especially when someone is determined to be the cheapest on the web. On the other hand there were one or two brands (mentioned in this thread) where margins are very good and deals can be had.