Every retailer I talk to these days is willing to start a dropship relationship (typically via CommerceHub) for literally any brand. It is easy to understand why. The retailer takes no inventory risk and allows for the buyer to quickly assess the brand's ability for success with a brick & mortar rollout. All the downsides are for the brand/manufacturer. The brand must ship a one piece order yet still only make wholesale on the shipment. This is why I believe dropship for retailers will never pan out to the industry's expectations. CommerceHub realizes this and is now focused on promoting their solutions for brands...extending a brand's reach to other platforms that aren't reliant on retailers...but reliant on marketplaces like Amazon, Facebook and Google.
Dropship isn't Amazon's achilles heel. Dropship will further empower Amazon.