I have to agree, my MacBook (May 2007) looks exactly like a notebook that's travelled throughout the continent nearly every week since I got it, because it has. And there are no misalignments, cracks, unexplainable failures, etc, etc. Pretty much like every Mac I've had since 1985. As bulletproof of a road & home, personal & work, everything-in-one-case machine as I've ever owned. Actually, with about 20 minutes of cleanup, it would look mostly like new.
OTOH, the company-issued Dell (4th in six years) looks like new, mainly because it has less than two hours on it in the last year, for it is literally incapable of doing half of what I do on a daily basis with the MB. Every single Latitude I've been given has failed catastrophically during my time with it.
FWIW, though, I wouldn't spend a dime on a Rev. 0 GlassBook, even if I needed a new machine today. I don't like being a Beta tester for hardware I depend on day-to-day.