I don't think there is any particular "reason". Majority of the languages and tools are really good enough to achieve 90% of business use cases out there. Unle

I don't think there is any particular "reason". Majority of the languages and tools are really good enough to achieve 90% of business use cases out there. Unless you have some specific requirements for you app like high concurrency or memory safety and so on, then you can pick whatever you (or your team) are most comfortable with: Django, Rails, Symphony, .. are all excellent. It's more about solving business problems and building great systems than anything else. All tools have pros and cons of course, it's simply up to us to review the requirements and pick the right one for the job.