I'd hope they'd launch with black, because I'd be all over that. If not, I'll probably just end up getting a white and getting a black if that one ever messes up or something.
As for controllers, yes, we share them. But my friend and I (the two owning Gamecubes) each have a controller that we consider our own. We share the others, and we allow others to use ours when we're not playing, but those two controllers are our favored controllers, and we always play against each other using those.
So I'd like a black one for that, but I'm afraid they won't release in black initially. And I want it as early as I can get it.