DAMN, that matte black.. yes please. This is definitely tempting me to trade in my OG black 3DS for it. I've had good restraint so far but this might be the thing that pushes me over the edge to jump in.
I'm fine with my blue XL. Don't really care what my portables look like. Mostly play them at home, and going to look like a nerd when playing a portable game in public regardless of color (unless it can pass as a smartphone). Besides, who cares what others think about such things anyway?
Of course, nothing wrong with being picky about color and buying a new one just because you like the color better. I just couldn't care less as long as the only option isn't pink or some color I hate. But black, red, blue, dark green, dark orange, etc.--lot's of color options I'd be fine with (even if I like some more than others).