Ok, so I got to lvl 42, done all quests that fits my toon, and all skills I want. So all that is left is to run around and rinse and repeat. And that's boring. It's a real shame they couldnt put in non repeatabel quests that would last up to endlvl.

So you haven't done all the quests available just the 'fitting' ones? Radiant quests do happen but they aren't nearly involved as the side quests and main quests. If you are happy with one character and don't want to complete any other quest lines then im not sure what to tell ya.