The BEST GTI club ever.
Rule 1 - Thy shall wash your car every weekend (weather permitting)
Rule 2 - Always park it under a streetlamp (looks amazing)
More rules welcomed!!
Rule 3 - Never talk about black club
Rule 4 - Take amazing photos and post on golfgtiforum.co.uk to annoy persons with candy white gti's

black = common + do not see difference between cars unless you really look for them, but
black is great, I agree
A chap in a corsa might not see the difference between black std GTI and ED30, but those in the know will.

A bit like the Audi TT 180 bhp and 225 bhp (old versions).
At the end of the day, the GTI is not there to impress with looks IMHO, would have bought an Alfa if that was the case. Although, GTI is a lovely looking car still. Drives better and more reliable than Alfa.
Rule 5 - Defend the Black GTI club 'til you die.
Rule 6 - Never talk about the BGTIC.