[photorized]

I find this more believable than various claims about how a 10-millisecond page delay results in multimillion loss of revenue.

[robfig]

That's coming from Google, who makes money off page views. Amazon has a different model, so I could believe the latency sensitivity of its business is different.

[lukeschlather]

There is an important distinction here between latency and availability. It's possible Amazon could be very sensitive to small changes in latency, while availability isn't that big a deal. After all, a lot of retailers do fine with nightly outages lasting 12 hours or more.