Haha. Very funny. No way in the world HBO would charge customers $9 to get this without a cable subscription. They make so much off of fees through cable companies because many people subscribe that don't even watch HBO. Their cable/satellite deals are extremely lucrative because of this. If they ever offer it without a cable/satellite subscription, it will easily cost 3-5 times what they charge those companies.
The alternative is they give their shows away for free. Game of Thrones = most pirated show in history... thus far.