Server virtualization rocks.
Whereas in the past, a company would need a physical server for each individual operating system (e.g. Windows Server or Linux), virtualization allows you to run multiple operating systems (virtual machines) on a single server. This saves your capital hardware budget, decreases energy costs, and provides significant harware disaster recovery options.
To boot, the virtualization platform we use, VMWare, is free for all the basic components, including the ESXi hypervisor, vSphere management application, and the vCenter Converter.
All of this adds up to meeting your IT needs at a lower cost to you.