If you’ve worked in an IT department for a mid-to-large company you may have run across Microsoft Volume Licensing. I think a tome could be written on the intricacies of the subject, but here I’m only going to touch on
BranchCache for Microsoft Windows Professional
If you ever looked into using BranchCache, you’re likely well aware that the Enterprise or Ultimate editions of Windows Workstation are required to get this peer-2-peer caching functionality. That’s a disappointment for many organizations who aren’t spending the extra money