Be immersed
Gaming through your tv/monitor speakers seems to be something that only is done by “casual gamers” or in a social setting. Headsets are the preferred option for many when it comes to jumping online and busting up some noobs. The benefit you get from listening to games through a headset is a massive advantage over other gamers, especially in the competitive side of the gaming world. Directional audio and an increase in audio quality adds so much detail and immersion to help keep you focused in the game.
Game developers focus a significant amount of their time on perfecting sound engineering because of the importance of the ambience, and the increase in the use of headsets. Sound progression has to keep up with the rapid progression of video graphics, and for us that is extremely exciting. Gaming would be very empty without the realistic, immersive sounds we now take for granted.