Not for everybody, also it would be great to consume textual content in a variety of voices, or even my own.

I'm not going to read while driving.

TTS with natural inflection opens up a world of narration to stories with audiences too small for human narration.

That's just ridiculous. I read and listen to stuff. I listen when I'm walking my dog, driving places, cooking, etc. I read when I'm sitting in bed or just sitting around with a book. Different scenarios call for different mediums.

Some of us have processing disorders. I can listen about 3x as fast as I can read.