You know what... I really have to agree with you. My iPhone 4s uses the Incase Slider Pro (for the sake of docking easily) and today I throughly cleaned and inspected the phone (I'm handing it down to someone right when the iP5 comes to my doorstep) and noticed very fine line scratches on the bottom side corners of the phone from what I guess taking the bottom part of the case on and off constantly. And you've guessed it, caused by the hard plastic because theres no felt on that part of the case plus the fine grains of debris collected over the past year. Luckily it's not noticeable unless put under direct light and upon close inspection.
The reason why I went for the Belkin View is because, well, the back view of the black iPhone! I'm somehow fascinated to show off the back side of the phone, hence why I've been searching for a clear case.
Now I kindly ask, what would you suggest for a clear case then?
PS: Sorry for the long post, lol.