If you would have a puppy which poops with golden coins, would you sell it to anybody?
No, I wouldn't. But they are already selling them. As more manufacturers get into the game it will be a competive market. The one that makes the fastest/cheapest will have a the advantage. If AMD was smart they would think about getting into manufacturing mining hardware. They would dominate because they have the engineers and manufacturing facilities to make a very good/competitive product. I only see this market getting larger and larger over the next 5 years or more. It is just still in its infancy.
As the market grows, I could see distributors carrying a selection of different devices from different manufacturers. Wouldn't it be nice to scan through the selection of offerings and look over the specs and read the reviews? May not happen this month or year, but I see it becoming a reality.