I work every day at a small animation studio, using Blender (among other software), and then I come home and use Blender some more for personal projects. Both at my job and at home, I found that I, and the other animators I work with, were relying more and more on command line scripts to render, both because of performance improvement (i.e. less memory consumption, less rendering-crashes with some add-ons, and generally faster renders) and because we often times need to leave multiple blend files to render overnight or over the weekend.