Rockbox was definitely life-changing software for me. I was so proud when I first managed to get it installed, at the age of 10 if that. I got a Sansa Clip Plus for about $25, an affordable price, even at that age, and Rockbox made it talk. Similar devices directly aimed at the blind marked are more expensive at least by an order of magnitude. It has served me well for years, up until 2016 or so, when I finally bit the bullet and switched over to listening on a smartphone full time. I definitely have very fond memories of generating audiobooks on my computer with text-to-speech software to play them later on the Sansa, though.