As said in the blog post, with the cloud you will get the same thing that you can pay your inhouse IT for 3 times the price.
For example, lots of people are thinking that by just using 'the cloud', your data is safe / replicated to multiple geographically separated areas. But no, it is not automatic, it needs to be configured like that with the associated costs. If you lose an ec2 instance, it will be lost in the same way as a node in your personal data center.