This is really pretty easy stuff guys. The examiner searches for prior art, and if he finds it, or an obvious combination of it, badda-bing, lovely rejection. If not, he is bound by statute to allow the patent, period. 35 USC s. 102 ("A person shall be entitled to a patent unless" there exists invalidating art). We all know you hate the law and the standards, but give this poor examiner a break, will you? He HAS to allow the patent UNLESS he comes up with a case to reject it. He HAS to do it. He HAS to. Suggesting bad faith or corruption as the cause of the examiner's allowance is obnoxious and naive.
The examiner did his research, and gave it his best shot. By amendment and argument, Amazon shot down his case. Nobody came to the rescue with any new art, and the examiner didn't find any. Indeed, despite the FAMOUSNESS of this battle, NOBODY has come up with any art to defeat the new claims or the old ones.
There are better battles to pitch than this one.