The Led lights look nice but four hundred pounds ? For me the normal tail lights are not that bad and don't justify the out lay for the Led's. Each to their own but I understand people wanting to personalise their car.
I agree with you that for what they are, theyare hugely expensive. I don't really consider it personalising, however, more like getting an 'OEM plus' look, especially now that these LEDs are available as a factory option.
Here's a good comparison between the GTI LEDs and the R model:
