I find the possiblility of doing something on my own - thus adding to the game - very exciting. The NWN Editor is only the peak of that, but something like scripts one could change - like in bioware's products - or modding could enhance the life-circle of a product. When I look into the Forum of Triumph Studios (Age of Wonders), I see that even todays MODs are made by fans - supported by the devs who built the game in a way that things can esily be changed. Like avatar-pictures, for example.
