I know a lot of people like the existing bulky top, but I would be much more into it if it was "functional" somehow. It's something I don't understand about the original design, either.
A lot of people start to panic when I talk about having an indent or lip for holding a pen, but I personally think it'd be a major usability improvement for *any* keyboard, and could justify the large top bezel even on a small desk.
Another alternative could be indicator lights, or a cutout for a nameplate that the user could replace with an OLED or something.
But nobody else probably wants those things...
)