Hugh MacLeod writes – "A few weeks ago, I met a young developer who worked in an IT department of a large insurance company. I asked him what kind of software did he use. Answer: About 75% Microsoft, 25% Open Source. I asked him why did he not use more Open Source? I thought IT people loved Open Source?
"If something goes wrong with Microsoft, I can phone Microsoft up and have it fixed. With Open Source, I have to rely on the community."
And the community, as much as we may love it, is unpredictable. It might care about your problem and want to fix it, then again, it may not. " Link.