It is not unlikely an AWS to GCP migration would have saved them significant money too, in the sense that they likely reviewed and right sizes different systems.
I also would love to see a comparison done by a financial planning analyst to ensure no cost centres are missed. On prem is cheaper but only by 30 to 50%. That is the premium you pay for flexibility, which you can partly mitigate by purchasing reserved instance for multiple years.
I also would love to see a comparison done by a financial planning analyst to ensure no cost centres are missed. On prem is cheaper but only by 30 to 50%. That is the premium you pay for flexibility, which you can partly mitigate by purchasing reserved instance for multiple years.