Depending on how you are selling it and to whom makes the difference. If this is online like on eBay or Amazon then they will trash the feedback if they do not know about this recall and give the "you sold me a computer and it died" speech. If this is local and it is someone who is going to chase you down when it dies get it fixed.Purchased Sept 2011. HDD still runs fine. Still has AppleCare til September. Get HDD replaced before selling?