[crispinb]

> What's wrong with using vim or emacs and being happy rest of your career?

I agree with your basic notion -- it takes quite some time to be really fluent with serious IDEs and editors, so changing is inefficient.

But just one editor/IDE doesn't work for everyone. If you favour a GUI-only editor like Sublime Text, for example, then you probably need to also know a console-based one. Or if like me you prefer a heavy IDE for most project work, you probably need to be fluent with a lightweight editor.

For me IntelliJ IDEA + emacs covers all the bases. I'll look briefly at new tools to keep familiar with the landscape, but I'd rather invest the time it would take to learn them into something which will improve my skills in something more useful to the craft than just more tools that do essentially the same things.