A common question is this: Do I need Azure Stack in my data center? Regarding ROI and TCO calculations, existing solutions are great from a TCO perspective. The hardware has already been bought, which is great, given that new hardware requires bigger budgets. Looking at the costs of managing a solution, Azure Stack is easier to handle as the additional training for on-premises technology is not required anymore, as Azure Stack behaves like Azure—it is Azure—and if you can work with one, you can work with the other one too.