eWeek: Survey: Apps Availability Drives Choice Between Linux, Windows

“Rackspace is a leading Web hosting company which, with about
half of its enterprise customers using Linux and the other half
using Windows, surveyed its users to find out why they chose one
operating system over the other.

“What Rackspace Managed Hosting Ltd. found was that enterprises,
despite the time spent in talking about security issues and cost
analysis, do not consider security and cost as major factors in
their operating system decisions…”