Serious question? Otherwise I have to respond with LOL. Only people inside the tech bubble would think a Linux desktop was normal, and even inside the tech bubble you truly have to have a reason.

The largest install of Linux as a desktop for a company I've seen has been at a post house where all of the software ran on Linux. The users only used it to launch the specific app they needed. They had TDs (technical directors) to do all of the Linuxy type of stuff.