In ESXi, they use technologies like memory compression, TPS, and ballooning for resource optimization.
VMware ESXi offers monetary savings by consolidating machines onto a single server, providing stability with disaster recovery and High Availability, and integrating easily with third-party applications. Despite its efficiency in resource management and scalability in production environments, its cost and initial investment requirements are substantial. Horizontal scalability limitations, complex password recovery, and slow technical support responses are noted drawbacks that affect its competitiveness and user satisfaction.