I will be the first to admit that shooting at super-wide apertures like f/1.4 is a lot of fun. But like many things in life, just because you can do it does not mean you always should. This great video discusses why there is more to life than wide open shots and why you should consider stopping down more often.
Coming to you from Matt Granger, this fantastic video discusses why shooting wide open is often not the best choice. Granger is coming at the topic mostly from an image quality standpoint, and he is definitely right: things like sharpness often improve drastically as you stop down a lens (normally, a lens' best image quality can be found about four stops away from its wide-open aperture). However, beyond that, it is also a question of creative expression. Sure, a wide open aperture can make for an interesting portrait, but often, you are trying to tell a story about your subject, and blowing everything that is not their eyes into blurry oblivion can actually work against your ability to tell said story. Consider stopping down a bit and including some of their environment to give the image more context. Check out the video above for the full rundown from Granger.