I still have two old Mac Pros (2010 edition) and an iMac (2009) that still work great. I can't upgrade to the last two versions of the Mac OS, but most of the light-duty apps and browsing still works.
Back to the spec, I noticed a 4x SuperDrive. I can't remember the last MacBook that had a disk drive! People complained and made fun of Apple for getting rid of the drive. Apple touted this move as a technological step forward.