But, as the article points out, you are still paying a lot of money for features that you don't need for scientific computing. Also, AWS is notoriously easy to

But, as the article points out, you are still paying a lot of money for features that you don't need for scientific computing. Also, AWS is notoriously easy to undercut with on-prem hardware, especially if your budget is large and your uptime requirements aren't - you'll save a few hundred thousand a year alone by not having to hire expert engineers for on-call duty and extreme reliability.