Comment Since no one reads the story - MS was cheaper! (Score 2, Informative) 264
As the study progressed, two main options emerged as choices for the council: remaining with a purely Microsoft solution, which would involve upgrading existing Windows NT and 2000 systems to XP; and moving to a purely Linux and open source alternative. “If you lay more emphasis on the monetary side, the pure Microsoft alternative would have won, or if you lay the emphasis on the strategic side, the open source alternative was better.
This was not a decision based on cost, it was based on functionality - being able to invest in their platform and implement exactly what they wanted was worth the additional expense, in large part because they committed to investing the money that would have gone towards US license fees into the local economy.