The MacOS X server discussion here two weeks ago included a comment from someone pushing the Linux/Unix distinction, my response pointing out that Linux is Unix and that people changing from something like HP-UX to Linux are changing Unix suppliers rather than OS architectures, and this response from Anton Philidor:

They’re also changing costs.

Exchanging ( ) Unix servers for less expensive devices is a way to save money. And the differences between the operating systems can affect the staffing requirements. That can have an impact on employment, current and prospective.

The “nonsense” is arguably a significant change in the way IT operates.

What Anton relies on to make his point here is first the assumption that Linux is somehow not Unix and, more importantly his expectation that people will unthinkingly accept the implied comparison between today’s costs for x86 servers and those from ten or more years ago for proprietary RISC servers.

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