In addition to the faults pointed out already above, Amazon makes up less than 10% of HDM sales. And, I totally forgot my source for that information right now; however, I think someone else linked it in the Neilsen thread at one time.
I would not be concerned about Amazon's sales ranks at all.
Just be happy. The war is about to end in a couple/few weeks and we can all get on with our lives viewing _all_ HighDef content in full 1080p with lossless audio on Blu-ray.