what was the purpose of this pre-order...?

I always thought, that one of the purposes of getting pre-order and pre-load was to avoid scenarios like the one that is happening now...I pre-ordered my game, before 1st release date(Sept), what for...?
BTW: I remember that Trent mentioned some extras for those who pre-ordered before the 18th Sept....what about it, huh?
Damn, sorry, for that but I am frustrated :( I want to play this game again and to feel like being in college again!