Let me preface this by saying this is my first Mac and I love it. Okay, so I noticed with the previous MB that there were issues with the trackpad and keys (esp. space bar) getting worn down over time like every other laptop. The keyboard on the Alum MB seem to be pretty polished/glossy looking. Will these have the same worn look do you think? What about the glass trackpad? Worn look or perfectly fine? My instincts say that it should be fine since it is glass, but it looks dull and I can see my fingers giving it a nice light sanding and luster after a little while.