What would you rather do? Control a single element with my entire hand or control 5+ things with that same hand? With all the buttons we have on top of and below the controller these days,you have a lot more to do with that one hand. There are the old joysticks that have multiple triggers and buttons on top, but there is no way you can pull off the kind of sensitivity you need for a first person shooter, and few other games that are suitable other than flight sims. Even if somebody did reinvent the joystick to work great with a particular game, it probably would ONLY work well for that one game. The lesson we have all learned from the most popular interface tools is keep it simple! Mouse and Keyboard, wiimote, the Playstation controller, all accept this fact, and thats why they are hard to beat.