In other words, vCPU/pCPU ratio drives your consolidation.
Storage capacity is relatively cheap, but I/O performance and response time is pricey.
In other words, storage performance drives your consolidation.
Network bandwidth is relatively cheap, but latency is pricey.
In other words, network latency drives your datacenter consolidation, geo clustering, DR architecture and hybrid cloud considerations.
The infrastructure resources (compute/storage/network) are relatively cheap, but human resources are pricey.
In other words, automate as much as possible and keep it as simple as possible.