I have realized recently that a value that is gaining a lot of importance for me is the stability of my cognitive investments, in terms of tooling, across a time frame that goes beyond my "current project", and more into the "my entire career" territory. In that sense, I feel more and more that the choice of learning and owning Emacs, more than 20 years ago, while in school, has paid off tremendously, in the sense that it has always constituted a solid and consistent backbone from which I can always start a new project, no matter what the context is (corporate or personal). I feel this would have been harder to achieve with a tool which is asking me to update it every 3 days, and which periodically introduce important paradigm changes forcing me to reconsider the way I work. In short, I value Emacs' stability and consistency across time and tech fashions more than anything else, as I grow older.