I don't think Amazon pays well. I turned down an offer from Amazon recently. It was to work in an area that was nearest and closest to my heart. Unfortunately their offer was 50 to 100k behind other offers.
But seriously, 50 to 100k more? That sounds like a huge differential. That means going from 100k to 150-200k.
http://kelukelu.me/interview/notes.html
hope they help!