I have owned the original Ti PowerBook G4 and a 2nd Gen MacBook Pro Aluminum and both looked great when new but they aged poorly, showing all sorts of fit and finish issues, and even corrosion on the aluminum surface next to where my palm would rest when I type.. so I'm curious if anyone who's had a newest generation "Brick" MBP can report better durability on these? They seem well constructed, but is that short lived?