Amazon doesn't really have a lot of reason to pick it up. They have the full show regardless, and they wouldn't get a whole lot more new customers than already watch the show there and on TV.
The whole reason it got cancelled is the network eventually concluded the viewers they regularly got weren't enough to justify the price paid for the show, and unless it's bought for basically 6 figures it's not going to get enough viewers that wouldn't be a disappointment. It was an incredible niche program, but still a niche program.
It's like the Twitter trend. Millions were tweeting about it for hours, but at the end of the day, where were those millions when they were needed and it mattered most (watching the program on time)?
They were given a rare gift, but they didn't want it until it was gone.