I see many companies going this route and be very dis-[ satisfied | gruntled | illusioned | gusted | enchanted ] and are really not looking to pursue further spending on M$ Products.
I am working on converting the Place I work to Linux only. And of course Open Source (some do cost money you know) Programs for all things needed.
Granted there are some places it won't work. But an RDesktop solution might actually work. Therefore minimizng cost of the M$ Tax.