I personally would rather be interested in buying a "DIY kit" as a package and then build it myself as building it is the fun part (then the kids can use it) :)
But I do see the potential for primary schools / kindergartens, retirement homes or any group where they occasionally have screen time. Makes choosing the next movie much more fun and no need to interact with a digital UI.
You could still have a giant library and rotate cards every week or something.