Regulations aside, you would be mad to tear this thing down. Relocating all the DCs (and I'm guessing exchanges) in there would be ridiculous. And... 'dumpy' isn't exactly the right word for this building. Another article (from the same site! with the same paragraphs!) shows how f'ing huge this building is.

http://www.datacenterknowledge.com/archives/2010/09/14/111-8...

Go to the bottom.