I listen to it during my commute to work. Plus I get the issue on Thursday evening, as oppose to the physical copy that arrives Monday or Tuesday the following week.
You can also listen while moving your person about from place to place, which can be quite hard or inefficient to do while reading.
I certainly spend a lot of time moving from one place to another. I also assume there are plenty of people who do the same.
Audio books, OTOH, make housework a joy since I can tune out of the horror of cooking and cleaning and concentrate on accumulating knowledge from one source or another.
Also, much more motivation to run since simlarly, I can just observe my pulse meter occasionally and otherwise concentrate on the book.