VMWare has more than just ESXi: managing ESXi, HA and DRS, vmotion, etc. Open source lacks what VMWare offers to enterprise customers. Not every company can dev

VMWare has more than just ESXi: managing ESXi, HA and DRS, vmotion, etc. Open source lacks what VMWare offers to enterprise customers. Not every company can develop tools to manage hypervisors (say, kvm) like Google does. Openstack is trying to solve this problem; but so far, openstack seems to be more of marketing, less of success stories.