I got the same e-mail about a week ago about the LoveFilm by post price hike. It's obvious what's going to happen there. Come February, tons of people will cancel en masse. As a result of that, Amazon will say - "Look! Subscriber numbers for the LoveFilm by post have fallen off a cliff! Oh dear, we had better cancel it then!".
Amazon Video is so difficult to use it's unbelievable. Oohh there are 4 seasons of that series I want to watch. But I can only watch the first three. The last series is pay per stream.
Oh you want to watch that film? Well you can either buy it for £x, or stream it for £y. But wait, now that you want to stream it, you can stream it in HD for £z, which is obviously more that the £y that it was listed at. Morons.