Believe it or not, my dear Linux friends, a lot of IT pros still believe they need Windows servers. They have this goofy idea that Active Directory, SharePoint, Exchange, Windows Server, SQL Server, and all the other members of the lardy malware vector family are the only proper business backends. They have this funny notion that Microsoft servers are easier to run. I must refute this odd notion with reality: they are not. They are expensive, troublesome, less-capable, and pointy-clicky does not equal easier to use, nor does it negate having to possess actual skills and knowledge.