[donio]

Not the OP but yeah, it's definitely up there for me.

BUT the big difference is that the decades old portions of my .emacs are still very relevant and in use every day while basically all the work I've sunk into configuring some long forgotten GUI junk has rotted away long ago and has to be redone over and over again.

We all spend an enormous amount of time tinkering with things but unlike Emacs most of it is so ephemeral that it's forgotten the next day.