You are right about glass covered displays being easy to clean. Although I dislike the reflections the glass covered display on my iPad creates, I acknowledge that it is, indeed, very easy to clean.In contrast I would like to see the glass-cover display in the MBA. I've had enough of dust-under-the-rim displays and the glass cover makes the newer ones easier to clean in general. I think I've done pretty well with my '08 MBP though.