Re: Go ahead
Without turning this into a contest, 30+ servers aren't really much to write home about.
The game changes when running enterprise IT systems when you are dealing with hundreds of servers and thousands of users. For all it's faults, Microsoft has a decent directory system that links very well with a lot of it's other products.
Now perhaps if a software house wanted to run purely Linux and had the expertise to deploy full Chef/Puppet orchestration then the argument may hold a bit of weight.
PS. I am not a fan of Hyper-V and much prefer VMWare.