Gameplay modes

I remember last November playing One-for-All and it was AWESOME! I remember playing Hexakill this passed February or March (I can't remember when it was released exactly), and I remember the April Fools joke U.R.F. My point in naming all of these is that Riot keeps creating REALLY good game modes and letting us try them out and I'm sure the player base enjoys them all, but then they take them away when they should implement them as more game modes to enjoy. I know U.R.F was wicked popular and so was Hexakill, and a talk with some of my friends even showed that they wanted to see them both become permanent game modes. I, for one, wanna see One-for-All come back, not just the mirror mode. I hope you're paying attention to this Riot!