Apologies for any uncertainty regarding CPU and RAM factors. Initially, my thought was to decouple the cost model from conventional hardware factors from a user's view. However, from the service provider's viewpoint, I have to encompass aspects like CPU consumption, IO usage, and RAM utilization while crafting this cost model to bring mutual benefit.

Utilizing AWS as a foundational reference is indeed a worthwhile approach, something I'll delve into by examining pertinent services.

Thank you yet again for your insightful feedback!