Hmm... in 2008 I bought CS4 Design Premium for around $400 (as a student). I still use it five years on.
With the new CC subscription, the cost of ownership by now would have been around $1800. If I had remained a student from 2008 until now it would have cost me $720 (they offer 60% discount for students). But I was only a student for one year (mid-life crisis), meaning the price from then until now would have been $1584.
I know which model I prefer.
As a side note: to those that had CS4, but now use CS6, are there many improvements between the two versions? If there's enough incentive, I'll just buy a student copy of CS6 DP while I still can (my wife's now the student)... it's still $400...
Having your wife buy PS at the student price for you, who is not a student, is essentially pirating the software. If you're willing to pirate the software part way, why not just go all the way and download it from the net for free.