Poofy is pretty much spot on, but I'd argue HBO GO is far closer to a good solution (even if you don't agree with the price). I'd like to see them offer it as a stand-alone service, one can hope...
At least it's a digital solution from the provider, which is exactly what House of Cards is.
Honestly I personally think HBO Go is the worst.
No offense to you directly, but you and every other cord cutter having hope it can be sold as a separate service apart from cable is part of why I dislike it. It is not a bridge to the modern future, it is a chain to the past. It is a wolf in sheep's clothing.
I mean, at least the other networks can argue at some level they lack the technical expertise to do multi-device streaming properly They can argue they need traditional forms of distribution because technology is not their core business.
Meanwhile HBO rolls out a modern online distribution platform that is a cord cutter's dream but they purposefully lock it to archaic cable in order to protect their traditional revenue streams.
Without something like an HBO Go there could be some hope that eventually the content providers would go to Amazon or Netflix or Google and wave the white flag in order to stay modern ala the music industry and iTunes. Then the technology companies would force them to agree to more reasonable distribution terms, again ala iTunes.
Thanks to the existence of HBO Go it has emboldened other networks to stick their content behind sign in walls that require proof of cable, and have shown them a path to hold back the tide of cord cutting for as long as possible. Except other networks do it crappier than HBO does because they lack the expertise, and we all suffer.
House of Cards and what Amazon is doing is the right way. Modern distribution with a monthly subscription. It is the closest thing we have to a Spotify, and if that is the model people what (which it is) then we need to support Amazon and Netflix for creating their own AAA content.
GOT (and many HBO shows) will stay behind their wall for as long as possible. Given the stifling regulation in the industry it might take 20+ years for cord cutting to get mainstream and put the pressure on them to detach from cable.