Coming from the Manufacturers side for the past 15 years I would have to say nfcphoneman hit it on the nose. Manufacturers (at least the ones that have a conscience) typically don't want to stack dealers on top of dealers. Sure they increase their chances of getting a sale but they also end up decreasing their dealers profit margin which ends up resulting in a lot of unhappy customers. Now with that being said most Manufacturers either have a well know Distribution channel which sells to the smaller interconnects or they have a "Blind" distribution channel which they don't acknowledge but understand it is there.

Trust me if you want a product you can get it. If you want to be recognized by the Manufacturer then you either need to ante up or go through a recognized distribution network.