Why is it people who have never used Linux are so sure it is not any good? The impression I get from most of the people I run into running Windows Server is that they are experts on how Linux does not have the same capabilities as Windows. They seem so confident about the lack of support and capabilities of Linux systems when in most cases they have never used the Operating System. They continually make outrageous claims and list inadequacies of a Product they refuse to even try. They claim it is not used in many places and gloss over the fact that MAC OS X is simply a custom version of Linux.
The best analogy I can think of would be a man running a freight business with a fleet of Pickup trucks. Although he has see others using big trucks he refuses to consider an 18 wheeler saying "Those things are to hard to maneuver and take to long to load. They won't haul small loads to several locations and it is impossible to back them up straight. I can do the same job with these eight pickup trucks even though it costs me more to pay the eight drivers, insurance on trucks and drivers and fuel for all eight trucks."
Personally I use both operating systems (all three if you consider MAC OS X separate). But I use the right tool for the job. If I need a server that will be accessed by a large group, needs to be secure, will run without much attention while being fast and responsive I run Linux. If I am setting up a laptop for a company VP I install Windows An a current Anti-virus application. If I am building a laptop for a graphics engineer or designer I use OS X.
The company I work for has 12 engineers to maintain 700 Windows servers or 1 for every 58 servers. They are always busy correcting a problem or patching the applications or OS so they will perform to original specs. We also reboot almost all of the Windows servers monthly if not weekly to keep the servers running smoothly. We run about 90% of them as guest servers under VMware (Which is using a Linux Kernel).
At the same time we have two engineers to support just over 250 Linux servers or 1 for every 125 servers. Once the system is set up and the applications are installed they rarely have to do any work on the systems. Most of the time they are not busy and are looking for something extra to do. We rarely have to reboot the servers and some of them have been up for over three years without a reboot.
I would be curious to hear from them why they won't even take it for a test drive and why they are so quick to accept unsubstantiated claims that it won't do what they need.