The new Microsoft Enterprise Cloud Suite is now available for customers to license Windows on a per user basis with a lot of nice additional features.
Here are some links to gather the necessary information to see if ECS is right for your company.
Microsoft’s ECS Page -http://www.microsoft.com/licensing/about-licensing/windows8-1.aspx
Licensing School YouTube – https://www.youtube.com/watch?v=do07TksAwE4
Picture courtesy of SHI Blog – http://blog.shi.com/2014/11/03/how-microsoft-enterprise-cloud-suite-licensing-affects-you/#.VHxImslEOT5