High costs for studios seems to be something experienced by everyone in Hollywood; the difference for Amazon is that the studios sell their product on a pay-per-view basis upon launch whereas Amazon gives it away for free to everyone with Prime (at least for now... maybe Prime will start doing PPV on initial release adn then free for Prime members later?).
I've had Prime for years and wish the service was bifurcated such that I only get the shipping benefits -- I don't really care for the streaming media part of it.