If you want one fitted, that's your choice, no need to justify; like yourself, I think they look good and even if everyone had them fitted on the modding scene, it's still kinda different. I initially replied as it appears they're not available to purchase anymore, thus maybe being illegally to park vertical being why. During MOT test, all wipers must park automatically if such a feature fitted as standard and if so, wipers can't park vertically on the screen. I don see why a single wiper can't be fitted, meet current MOT test legislation, thus park off screen but when at shows, just turn ignition off when wiper in middle of screen. It can only be an issue with the Police if a car is driven with wiper parked in a vertical position.