To be really really honest, I don't care.
At the moment I have my iPad in an Apple case as many do, so all I see is the black glass screen anyway.
The case could even be made from Plastic and I'd not really care THAT MUCH.
To me it's more about what it does than what the box that contains the electronics looks like. Which is why, to be totally honest, the iMac does nothing for me and I can't buy one, as I know it's the design that is crippling the hardware.
For me, and I know others disagree, you make the electronics 1st to be the very best you can for the price, and then you fit them inside the nicest looking case you can.
You don't decide on the case you want, and then wonder how you can cut down the hardware to be able to fit inside it and give you the look you want.
When I use a Computer, or a Laptop or a Tablet, I''m looking at the screen and how well things on the screen look, quality wise, and how fast and smooth they move. To me this is, without question the 100% most important aspect of a computer type device, everything else comes second to this. Sure, it's a bonus if a piece of equipment looks nice to. But it's not my 1st priority.
I was I selecting a haircut, a pair of shoes or a suit, or perhaps even to some extent a car, then looks would play a dominant or much more important role, but for me anyway, for a computing device it's all about the screen and what happens on the screen. Not if the back of the case, facing the wall, on my 27" monitor device is 1/2" thinner.