87 percent of IT professionals currently leveraging private cloud solutions indicate that their companies host clouds on-premises rather than with third-party providers, according to Metacloud. Reduced cost (38 percent) topped security (34 percent) as the reason respondents gave for deploying a private cloud.
via Most companies choose on-premise private cloud deployments.
The buzz marketing of public cloud continues at a brisk pace, at least in my anecdotal experience. I find the cost driver the surprise in this report, especially that ranked higher than security. What I'm not surprised about is that people are starting to realizing that there are hidden costs behind the public cloud. I didn't know that realization had progressed so far, at least according to this one report.
Your mileage may vary.