I mean, seeing people like audio-books. If I had a girlfriend with a really nice voice, and she was willing to record herself reading to me, I would like that too.
It doesn't even have to be "really nice" just alright to listen to. Do you know how disappointing it is to listen to an audio book you were excited for, only to immediately despise the readers voice?
I got this Audiobook once that I had to quit, only like 1/43 of the way in, because I could not STAND the narrator. He had this terrible habit of dropping the ends of sentences, like imagine if I just mumbled off this whole part. Every time you heard a new sentence, you wondered if your headphones were broken. But in fact, the narrator is just a dunce.
How this yokel was allowed to record a book is beyond me.
Honestly, it wouldn't even have to be a really nice voice. I would like it regardless. Hell, at this point in my life, if someone did something this thoughtful for me, I probably wouldn't even know how to react. I would probably just stand there, stunned, while my brain processes the situation.
One thing about braille, it's more difficult to produce, and less space efficient than just letters on the page. Here's the lord of the rings in braille: http://www.braillebookstore.com/Lord-of-the-Rings-Trilogy. And here it is in normal writing: https://www.thalia.de/shop/home/artikeldetails/A1060442563. As you can see, the braille version has a lot more pages. (keep in mind the version for sighted people I linked is a German version covering all three books). In addition the sighted version, despite being presented as a luxury edition, is cheaper than any of the three lord of the rings books in braille. This could just be blind people being price gouged, though. But nevertheless, reading as a hobby is more difficult and more expensive for the blind.
Lots of blind people don't read braille for fun. Of course they'll use it to navigate public buildings and such but braille books are crazy expensive, cumbersome, and not typically very well put together.