I know but in theory if its already part of the car rather than being added as extras you should get more back come trade-in time.
At least that's my reckoning

I'm only 14 months into my GTD ownership so I'd lose too much just now trading in.
My Mrs on the other hand has just a year left of her 4 year deal so contemplating the GTI for her.
Although she is happy to take my GTD and for me to get the R

She's not into cars

She already took my A1 which allowed me to get my current GTD.
The current kit on a GTI is hard to ignore though.