Do the controllers in your household come in rainbow colors, or are you perfectly content with the generic gray ones? How about the 360 itself; is that regular, or did you splurge on a theme?
Our Xbox 360 is the plain white version; we didn't splurge on a game-themed one. One of our controllers is plain white, too, but we recently bought another controller and decided to buy a blue one this time.
We use the regular 360, but both hubby and I have our own hued controllers. He used to use an all-black controller, but has recently upgraded to the silver one that has the more defined D-pad. I use a pink controller.