Speccing a 1.5 TSi with LED headlights just made no financial sense!). So I have ordered a MK7.5 GTi DSG in Isaac Blue with the following options:
Climate windscreen
Rear view camera
It might have made financial sense depending on what other equipment that the GTI has as base were things that they wanted...
I fully agree that choosing a R line and adding LED lights doesn't make much sense, but if you had chosen a SE 1.5TSI DSG plus LED's, met paint, rear camera, climate screen its £25535 (RRP) vs £31670 for the GTI DSG plus met paint, rear camera and climate screen.... thats 6 grand different!
The residuals won't be significantly different either plus the fuel bill, insurance and road tax will be a lot less too...
I'm not saying I'd be happy with the SE, just commenting on your logic ;-)