For some reason I got the Verizon Silicon that had no lines on the back at all - smooth and glossy. The nice thing about it was that it fit the extended like a glove and I liked the grip. Never had a problem putting it in my jeans.
But you are correct that the bulk is way too much. The Diztronic is less bulky than the Verizon.
The Diz was the second case I bought and I didn't know any better about matte. I could have ordered to glossy one and probably would have stuck with it. But my dad bought the Nexus also so I just gave it to him - he likes it.
I used the Verizon until I got the super cheap one I'm using now that is very light and has a great grip on the sides. But ultimately I want a bumper case.
I have a small pile of cases next to my desk. I've become a case junkie