I guess you don't necessarily have to be in one camp or the other. But I know I used to be a scoffer. And now that I have been using an ergonomic keyboard for a while, I'm a bit of fan.
Of course, what I really need to do if I want to save my forearms from total numbness is to spend way less time typing.
Anyway, the keyboard I use at work is one of those garden-variety numbers that incorporates a slight wave. Nothing radical. I wonder what people have to say about the more exotic designs.