The reality is enterprise support for linux systems is the one variable i don't really see discussed here. This is Microsoft's bread and butter for a reason. Organizations prefer an easy upfront cost rather than complex, support intensive solutions.
A switch to Linux has a good chance to increase these types of requests, at least in the near term.
One of my big issues with the Linux Desktop community is this attitude that they understand your workflow better than you do. You ask how to do something and you get variations of "don't do that".
> You ask how to do something and you get variations of "don't do that".
I usually add "do [something appropriate] instead, which will solve the problem and not introduce a [horrific IT risk]".
Window support staff are cheap and abundant. Not to mention the off the shelf outsourcing providers. IT in most large organizations already happens in India.
Love Linux and use it as my main desktop. Supporting corporate wide? Big no.
Windows is easier to maintain and more intuitive. There is always a dude who can make it work with a bit of point and click.
People who can administer both will eventually end up on a Linux jobs because they pay more and they don't risk being the monkey who maintains the printer.
I imagine this is true for a lot of businesses as well.
Nothing against, Linux for the desktop but enterprise wide is a big difference.