There are various vendors providing a massive variety cloud-hosted Windows Virtual Machines. (Azure, GCP, AWS and others)
When in cloud, VMs dramatically differ in performance and costs (!!!) based on selected storage performance tier.
Primocache could be THE tool, which enterprises use to optimize cloud costs. (By mitigating the impact of slower storages.)
In some cases, the ROI could be near-instant. (In addition: Subscription-based charging could be in fact welcomed by large enterprises.
:-O 
)It would be great to see a whitepaper on the topic. (Assuming, there is such ambition and vision.)
