Linux is more stable than other modern operating systems . Usually when a Linux machine is brought down, it is to upgrade the machine or the software. From the beginning, Linux was programmed with multiple users and the ability to do many things at once in mind. This came from its Unix roots. Today, twenty years later, that capability is mature and stable.
Help is readily available .
With programmers and users spread across the world, help is as close as the internet. You can get help via email, or directly from the various Linux vendors. No more sitting on hold for hours and then talking to someone who has no idea how to fix your problem. Linux comes with commercial-grade applications that make office work simple . Many vendors are taking an interest in the Linux phenomenon.