mr.teach: why wouldn't you fight dragons
just like smaug they love to hort riches - and thus give you pracitally the best items in the game
well the cult of the dragon/phoenix/hyrda/giant give those items aswell - but more

otherwise you would have to buy the banner of unity and equally awesome stuff from rarity traders you encounter - and that is a lot of money
and bought treasures don't count towards the found treasures that give points