I've been writing ruby since 2008. It's been the core language in my career since. I think that languages/frameworks are more or less popular based on your location. For example, Utah was an early adopter of Ruby/Rails and has become prevalent in many large companies here (Silicon Slopes). There were (probably not anymore) 4+ ruby groups that were within driving distance to me that ran each week.
Companies who choose Ruby/Rails I believe do so because they want fast iterations, agile development, and small dev teams. I think this also applies to Python/Django and PHP/Laravel as well.
Companies who choose Ruby/Rails I believe do so because they want fast iterations, agile development, and small dev teams. I think this also applies to Python/Django and PHP/Laravel as well.