My dad is regretting his DBP choice (of picking up an order change mistake early as opposed to picking up the reorder in October) - it's twitful to keep clean. When it is immaculate it looks amazing, when it is not immaculate it doesn't look half as good. I would say the gloss black will be even worse for this as it doesn't have sparkly bits to break up teh very glossy surface. Have a Black or Carbon Grey or Night blue Golf and be prepared to wash it a lot!
Yup, black will look stunning when washed and properly dried, but will soon lose its beauty. Even the act of washing a black car is a bind compared to, say, white or silver. I've had one black car in my life, and unless I win the lottery and can afford to employ somebody to look after my cars, I'll never have another one!