Riot Can you answer why ARAM doesn't have all champs unlocked?
Points for:
Gives new players a chance to experience different champs possibly leading to higher sales should they like one that isn't on the free rotation. Evens the playing field for all players in ARAM
Points against:
Would remove ARAM specific account viability.
The only point AGAINST doing this is that it would make players who like to stomp other players in a less competitive arena mad. This isn't exactly a point against and I believe aligns with Riots core values. If you have a good reason why you're not doing it, let us know.
Insert sarcastic, rude, ignorant comments below