Linux and Open Source Consulting
well, let me give you a few reasons ...
Linux is reliable
Linux systems, just like any other Unix systems, run for years without any failure or degradation. Except for a kernel update, there is no need to reboot a Linux system.
Linux is performant
For almost all purposes, the hardware requirements are minimal, and modern hardware can be used to run hundreds of 'virtual servers' in parallel.
Linux is multi-platform
Linux ports provide completely functional systems for at least a dozen hardware platforms, including, but not limited to: alpha, arm, hppa, i386, ia64, m32r, m68k, mips, powerpc, s390, superh, and x86_64.
Linux is free
by far not the strongest argument, but definitely a good one.
No proprietory protocols
Open protocols are used exclusively, thus avoiding any vendor or product dependency and increasing cross system interoperability.
No privacy issues
As result of having the source code available, functions that would violate our privacy can and would be detected by an army of Linux enthusiasts.
Whether it comes to extendability or portability, Linux always provides whatever necessary.