Why Doors On Hinges?

If we can have scripts that allow us to change properties of prims on doors, why do we make them so complicated by having them rotate, which involves rotating the prim and fixing that it moves ever so slightly over each time? Why not simply make a script that makes the door change texture from a door to alpha, and change properties from solid to phantom? Then people walk in and the door goes back to normal on a timer. Would someone who has free time (I can't WAIT to have some) get on that please?