If us-east-1 going down for about 24 hours costs Amazon $1.3+ billion, wouldn't that make the yearly revenue of that region something like $475 billion? I think that's like AWS and Amazon yearly revenues put together.
I still have my doubts about 24 hours of reduced performance on us-east-1 being so costly that it's equivalent to 1% of yearly Amazon revenue. I know that we run some services on us-east-1 and they never completely stopped working during the downtime, so it wasn't a complete region failure.
1. That fine mention in this article 2. The outage that happened in AWS US-East-1 region earlier this week