It is just a bandwagon thing now for sure... if its done properly, it can look awesome.. I think i did my old 300zx Matt in 2005.. But was more of a show car than anything else, and it was pretty fresh to see over the normal candy red... But its come to be the norm nowadays....
And of course i helped out with the Ex's Capri when it turned Matt Black....
I think on standardish looking cars, it looks shoddy.. As its just a rat look.. But on properly modified cars, it can still look pretty awesome