For all those who think a watch case is silly, I agree for regular everyday use. I laughed out loud at the first case I saw.
But then I started to think about when I went snowboarding, or when I did any sport that might possibly scratch or mess up my watch in some way (shock, etc.), and I realized that I might need a case afterall.
Speck always made great products for shock absorption, and their button feedback is excellent. If the price is right, this is something I might consider for any activity that may damage my watch.