I know. The hinges are what naturally wears in all kinds of hands with active use. So that’s what matters IMHO. You open and close them, regularly. You don’t regularly strain that plastic while cleaning it, and you don’t regularly drop the thing or press against it. But opening and closing the lid is normal.

Also, yes, ports, which is why MagSafe is actually a cool technology, both less wear and more certain electrical contact. Anyway, I don’t own anything with MagSafe.

Really rugged is about ThinkPads and really-really rugged special laptops the size of a few bricks.