A lot of the comments on the Silicone tell me they're from people who have never handled the Apple silicone case. These are not stretchy rubbery sticky cases like the average silicone case. Those can stretch and get dirt between and then flex and rub and such.
The Apple silicone cases are semi-rigid cases (of the same or greater structural integrity of the leather cases) with a soft-touch silicone on the outside (the same material as the iPad smart covers), and a microfiber lined inside. There is no flex or pull or gaps in the case that would allow debris between the case and the phone unless it was there when you put the phone on. It's an extremely well-fitting case that does not flex when it's on (though it's still relatively easy to remove due to the open bottom).
Does it collect a bit of lint? Yeah, a bit, though it's easily wiped off with a finger (unlike the rubbery silicone cases where they just stick to it no matter what unless its wet).
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