One of the best things about LOD D2 was PvP, and I remember searching for items with particular stats throughout the entire game. This got me playing months after finishing the regular gameplay. One of the additions that LoD lacked, even with runes, is leveling items after completing stages of regular gameplay.
Imagine you find a sword, and after finishing stages of the regular gameplay, cold damage is added. The catch would be, that if you keep this item through the entire gameplay this item could have the highest cold damage in the game (given you hit all the cold upgrades). This way you would add personalization, and increase regular gameplay participation.
David Kim - I can’t wait to see the game engine behind D4. 