A classic trade for your used Apple equipment is to to GO BIGGER!.  One trade we see often at Experimac King of Prussia is for an iMac.  Bring a 21.5” in and leave with a 27.5”. This trade happens the old style, the thin, the Retina or any combination.  And you can always add some more memory and storage.  Its easy at Experimac with free data transfer and a one year warranty.  Let us make your Apple experience BIGGER and faster.