In my view it is the single most important aspect of any camera design. To boil it down to a single word: ergonomics.

How anybody can take a decent picture, awkwardly holding a camera at arms length, waving it around and watching the image slide sideways and up and down in the LCD screen is totally beyond me. Nobody who is serious about taking pictures would put up with that for an instant.

Of course, that's just my opinion (supported by more than 45 years of photography experience). YMMV.

tanstaafl.