I used to think they where 'cool' but now I think it's a lazy way to mod your car, ie cover it in cheap crap and take all the paint off n let it rust. Rather then looking after your car, buying/ doing tasteful mods and cleaning and caring for your car.
Don't do it to your 1.4 bud, it may only be a 1.4 but don't let that stop it being a great golf!
Edit: mines only a 1.6, still love it more then my old gti valver