† †- I had nothing to loose
† †- I could farm up my skills in semi-high level play
† †- I could try new styles of play without the threat of loosing
† †- I had a better training ground than normals
One thing you really have to do in League of Legends is blame yourself for everything, and be able to accept that it is true. (even if you think otherwise)
If you do not, then you will get stuck in the stages of loss and greiving, and as long as you are playing mind games with yourself your game will be effected and more prone to making irrational decisions.
I have learned to jungle, gank lanes from mid and top, better warding, and more effective styles of leadership.
While my MMR is not great and I am not exsactly were I want to be, I am learning a lot about the mechanics of the game. (What leads to succes, and what does not)
A lot of people hate the Fifth level of the ladder system, because bad players cannot move down. But it is probably one of the best places to train for ranked games in League of Legends. (or at least, for people without friends to play with)
Normal is great, but there is a lot of issues since no one looses anything. (not too many low skill players take normals seriously)