Comment: Save now vs. over time (Score 4, Insightful) 95
How much have they saved now? Probably not much, and probably spent more.
It costs money to find the location, arrange the contracts, hire new people/lay off or move staff, and move equipment between rooms. Even then, many organizations may say it's cheaper to buy new hardware than it is to move 5+ year old servers.
However, the efficiency once many of those data centers is closed will become apparent. Space/power/cooling/networking/staff isn't cheap. Consolidating will give you some amazing savings a few years in.