I developed a system that used VMware in over 14,000 locations. I used VMware because the MS product couldn’t do what we needed to do (run a legacy Unix-based system).
My management has spent the last 5 years desperately trying to switch over to MS, but no matter how much they want it, it still won’t do the job.
There are lots of management types who would rather have a failed project than a non-Microsoft success. Stupid, but common.
FYI, Steve Balmer himself took my boss golfing to try to get back that contract.
And a lot o "administrators" who think they know something because they can use a point/click 'wizard'.