Why Clears? Well, I sampled some of my friend's keyboards and found the Reds a bit too easy and the Blues a bit loud for me (yeah I guess I'm not into the clicky)
Another friend has a kb w/Browns and he seemed to think them still a bit loud. From what I've read, the increased resistance of the clears makes them harder to bottom out, so ... less loud?
I do tend to type very hard, so I guess I would have probably went with Blacks otherwise. After trying all of the Cherry kb's I realized the keys on my Logitech Illuminated keyboard were actually fairly hard to type on, which may be why I tend to hit the keys so hard.