Disaster Recovery Suites offer the ability to collocate all of your critical business functions in a facility that can be used full time or as a catastrophic disaster recovery haven.  Disasters are typically regional, having a facility that allows business to move key players out of harms way is critical.  Disaster Recovery Suites house  people, run the network and maintain business continuity during unforeseen interruptions.
 
Collocating a primary or secondary network in the building keeps you close to your network.

Disasters happen.  Have a fully redundant location for all of your business data needs.  Your network people can move into a working office/home with a Data center in the building.