I think we're at least near the point where it's better to get the text and feed it to an AI reader app, that can be customized in various dimensions, like actor(s) and pace.
I have some favorite audio book narrators, like Patrick Tull, Stephan Fry and Stefan Rudnicki. Sure I'd rather have them read for me, but I'm not going to be able to afford that. I maybe could afford for their licensed AI mimic to read it, and that is an improvement over many random amateur contributors. With AI "personalities" it may become as simple as "have personality X read me text file Y, moderato".
Also it would be great to be able to conversationally control the narration. "Pause, hey what does that big word mean, go back two sentences and restart, stop, who is this Watson guy?, ok keep reading but adagio."