The purpose of this paper was to look beyond the cost issues that have dominated media discussions on the deployment of Linux-based systems and examine what longer-term benefits might have been achieved as measured through Return On Investment (ROI). Those enterprises in low-margin industries tended to focus on incremental cost savings in hardware, software, and manpower in calculating their ROI; major financial services firms with more aggressive implementations that included application servers and High-Performance Computing (HPC) applications reported the highest returns, with several projects returning over 500 percent of the initial implementation investment.
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