It gets worse as you level i'm 18 atm, not played it a few days but I have moved the xbox to the other room so the misses can watch her crap and i can game when I wish.
Also be aware with some quest items, the thieves guild once completed in terms of their main story you obtain nightingale armour bow etc... All these quest items are brilliant with a single flaw, there effectiveness is based on the level you obtain them, so the higher level you are at the time you obtain them the more the item bonus effect is.
Its the reason I've layed off doing some quests (there's not many items that follow this rule luckily)
Brilliant game though I never got into oblivion after playing it for an hour but this has definetly made me an elderscrolls fan.