This I understand from ADOBE is a new policy and therefore if you have not all ready done so, I suggest the IAC does the same for members.
But before you jump at the chance to get up to 80% discount remember that we are talking about CS5. CS6 is just round the corner with some incredible new tools and you will not be able to up grade unless you pay the full price. You will also find that CS6 will not be offered at the educational discount.
Sh/1t!! I bought a new addition of Photoshop last year.