I don't think it's just about novelty here (though as said, chasing the new shiny thing seems to play a large role none the less), but also because: 1. Develop

I don't think it's just about novelty here (though as said, chasing the new shiny thing seems to play a large role none the less), but also because: 1. Developers want their CV/resume to look good for the next job, and the best way to do that is to have a bunch of fancy technologies and frameworks on it. Going for what's simple and works best is great, but unfortunately not something recruiters (especially at large tech companies) care much about. 2. They're used to that one language or framework, and hence think every single problem under the sun should be solved with it. It's the old 'when all you have is a hammer' issue, and endemic in every company from the small agency to the large tech corporation.