OK there's a barrage of posts coming in so single quoting them is getting tough.
I just want to step back for a moment. I REALLY appreciate the logical replies and hard-hitting questions. It's giving me a lot to think about. What follows will no doubt sound like excuses, but I promise I am trying to keep an open mind here:
I don't think anyone can just declare that we should eliminate Windows from our environment. You don't know our budget, current applications, workflow, user count, or anything else. Yes, I am sure that through application of simple logic and analysis you could make a convincing argument against staying on Windows, especially looking at the situation as presented through a handful of posts. But that in no way allows for all of the soft-costs associated with this. For a team of our size to engineer and execute an organizational wide replacement of an entire operating architecture would be a near impossibility, to say nothing of our other ongoing projects. Recent organizational investments in Windows-based 3rd party applications (including ongoing painful user training and data migrations) alone would kill this in its tracks.
We're kind of getting down in the weeds here. I recognize that there are most likely BETTER ways to do IT in this organization. But the fact is, we are where we are. It has been decades of decisions made over a long time based in the old IT world, and we are very well entrenched. But I can't change that overnight. I am not the key decision maker. My job title is simply "Specialist", and while I can advise and implement, in the end it isn't my call. There is absolutely zero chance of me selling a "take off and nuke the site from orbit" scenario here.
What I am trying to do is make the best of the resources and influence I do have. We're not leaving Windows, at least not during this administration. But yes, maybe Hyper-V is a realistic alternative that we should stop and take a harder look at.
Looking forward to getting this post shredded in 3...2..