Predictably, I disagree with you

The Monzas are easy to keep clean principally because, IMHO, they look dirty all the time. I really don't care for this current trend for black wheels, to me they just look as if they're caked in brake dust all the time, or as if the owner has just driven through a pool of tar...
I also do not mind in the slightest that my car looks less like a GTI; I'm not looking to be different, rather a tad 'classier' and I think the Interlagos wheels are a lot more sedate than the slightly vulgar/tuning Monzas. You may be right on the residuals, in fact I did consider hanging on to the standard 17" wheels that came with my car, but I would like to keep the GTI for many years and so do not really care.
But, as you say, at the end of the day it's all down to personal taste and I can honestly say that I do not regret swapping my wheels at all
