Its not inherently better than sending someone a playlist by any other means but on the other hand I just think its neat to have a physical thing that you have to intentionally plug into something and listen to in a specific order and way. That and the way that tech/streaming is changing the ways we interact with music on a personal and cultural level is overwhelming to me, makes me nostalgic for the limitations of older mediums. When you had to be intentional about what and how you listened, it (at least to me) made a deeper connection between me and the music as a listener. Fortunately we can still be intentional in many ways, its just easier to not do that with streaming and algorithmically recommended stuff.
I do wish that my friends would still send each other playlists in any format.
I still use a Tesseract Deepcool case for my home PC that I got in the mid 2010s. Nothing groundbreaking, could have more fan slots. It didn’t change the world, but it did open my world to building PCs and picking parts, so that’s cool.
100% not what you are talking about.