The parent comment misunderstands that most of Amazon's customers are very clearly not extremely concerned about the bandwidth costs (even if they'd all happily receive a lower bandwidth bill from AWS). They're not there for the cheap bandwidth. That's the central flaw in the parent's bafflement about markets, they did a exceptionally flat appraisal of the AWS value proposition, as though AWS isn't a gigantic business of many dozens of service offerings which act as a customer magnet and retention mechanism.
And many customers simply are not doing petabytes per month.
AWS wasn't meant to support Netflix type loads, those guys will build their own CDN's. For everyone else who wants security groups (totally for free) when some other firewall vendors would charge a small fortune to provision 1Gbps capacity for these types of services... they are fine with the price.
The other issue cloudflare doesn't understand is the bandwidth pricing they quote is for capacity (ie, 10Gbps). AWS has to have enough capacity to serve the peak, but the customer only has to pay for data used. I'm sure at low points the data is free, but maintaining the black friday / superbowl capacity is expensive, so you are paying a premium for that too.
Urm, Netflix is BUILT ON AWS (or at least was 5yr ago):
> Netflix uses Amazon Web Services (AWS) for nearly all its computing and storage needs, including databases, analytics, recommendation engines, video transcoding, and more—hundreds of functions that in total use more than 100,000 server instances on AWS.
