The real cost of switching to Linux: Here’s a well-written, well-researched article considering when it makes sense to migrate to Linux and when it doesn’t. No easy answers here, but it’s very balanced.
“The simple answer is this: The more fully an enterprise adopts Linux across its infrastructure, the more financial leverage it is likely to get out of up-front investments in the OS. Those investments, which can be considerable, include Linux training and tools, and the costs of migrating from a Unix or Windows environment. And that financial leverage is improving steadily as better management tools, more third-party vendor support, and more skilled Linux system administrators arrive on the market.”