Would just like to note that the previous posts were made by the former owner of HostAffect, not me. I actually see no good use for raised flooring. Equinix has proven that raised flooring is not necessary. Simply use overhead conduits for running cable, much simpler than doing it under the floor and then a properly done overhead cooling system, as cold air falls anyway, which would make it more efficient than pushing it up through the floor.

I am actually unable to find a single advantage to raised flooring, other than the fact that that seems to be what most people expect.