and because stuff gets trapped in there... I've noticed on my other phones which I've had similar cases, if I don't clean it right away (end of the night or when i need to charge it next) its hard to clean when you do end up taking it off... After I started cleaning it every night the phone stayed in premium shape, however the cases clip edges wore down on my old phones case and it fell off constantly! The first two cases for my milestone I had purchased both broke with in a week of buying each other... and funny enough I'd only admit it here that I broke them myself but blamed it on design to get my money back. The clip belt one I twisted too much and broke the plastic housing for the pin that holds the spring back for the clip. The second shell case one black (very nice material like the back outside of the milestone phone) I had put the back on upside down a couple times and the third time it snapped the speaker cut out edge. I took the first clear shell case one back with in days due to its edge clips for the touch screen were dragging on the keyboard and leaving marks in now after complaining, i got the belt one now again and I'm more careful with it. I heard from the Telus guy here they are going to be getting a skin one in soon..hurry...
I do like this case as well outterbox looks worthy and plus there is a lot of good comments about it as well... btw I just got the dock recently and it is awesome! Totally worth $39.99!
Thanks for all the comments!