Ranked ARAM?

I doubt Riot would ever do this, but I was curious what other people thought of this. I know a lot of longtime League players who almost exclusively play ARAM, mostly because it forces them to play and know how to play every champion that they own, which is a skill to celebrate in and of itself.

Feel free to disagree, I'm not really sold on the idea myself, but as mentioned above I'm curious what other players think about this.