[flor1s]

As someone who has a PhD in informatics, I would say it's only worth it if you (mostly) like doing what is required for getting the actual PhD (research, writing papers, giving presentations - often to an audience that is not really interested in what you have to say but still has to grade you).

Having the PhD is not that useful unless you want to be a professor / academic researcher. In my case I work for a Japanese governmental research institute, which hires both PhDs and "supporting staff". Supporting staff have less freedom and have temporary contracts. No-one really gets paid that well. In terms of work, I'm still coding a lot, but also need to read and write many papers, proposals, etc.