Diffrence in price between boxed versions of NIS and renewal in Norton account

Hi. I shall soon be renewing our subscription to NIS, at least on three of our computers. I could, as I have done in the past, renew in my Norton account and pay (here) 60 euros. On the other hand there are boxed versions available - version 2013 for three computers sells at 22 euros, and version 2014 sells at 65 euros.

If I buy the boxed 2013 version, will I be losing out on something? Surely I can update to the latest version online?

Or am I completely mistaken?  :smileyfrustrated:

Thank you for your help.