My favorite thing about listening to audio suttas is I can listen to it on a portable mp3 player while walking outside, breathing fresh open air, feeling the sunshine, doing walking meditation/contemplation of dhamma. As opposed to reading the same sutta, I'd be sitting on a desk, breathing (relatively) stale air in a room with artificial light (depriving my body of extra Vitamin D that would be produced from getting 20min of sunshine). Extend lengths of time sitting on a desk contributes much to the health ailments of the modern person such as lower back strain, tight leg muscles/tendons/ligaments from not getting a full range of motion.
For short suttas, 10min or shorter, I also like using it as a prelude to a formal sitting session. Essentially getting a 10min pep talk from the Buddha before meditating. On one of my daily sits I'll usually play the Metta Sutta and chant along with the monastics.