Also archiving; if you want to listen to the audio after the fact (checking things, catching up - just he hear Franzke and LA covering something you might have seen on TV, etc.
For instance, if I had the Gameday Audio package, I presumably would have been able to listen to the post-game Friday Roundtable in the archive; as it was, I turned the WIP broadcast off, because we don't watch/listen to media during dinner - we're "old fashioned" that way - dinner time is family time, period.
And for whatever it's worth, I wouldn't want to try to stream audio (or video!) on any kind of regular basis in the car, due to bandwidth issues on a cellular connection. Even 5g, which would work, would run up the total data transfer to the point that would likely want to cap you, slow you down, or charge you for a higher monthly data limit. But at home - on FIOS? Incremental cost of zero.