Re:Adobe is offering many of their CS2 software for free for...
by maxerickson on Monday January 07, 2013 @11:23AM
(#5021711)
They only offer upgrade pricing from CS5. They stopped offering upgrades prices to CS3 and CS4 owners at the end of 2012:
http://www.adobe.com/products/creativesuite/faq/upgrade-poli...
I imagine that would be a stopping block to making earlier versions free or very cheap.