Let's put it this way: if you cannot spend the money for any reason, it's better to have something then nothing. CS6 is running well, but, of course, you're missing the latest developments. As long as you stay in the "print" area, I don't think it's absolutely necessary to change. Keep in mind though, that people with CC cannot send you 'native" file (idml is still possible). If you're into 'epub-ing", then I would consider a subscription for CC 2014.