If development costs or inflation were the legitimate reason for a price increase, it would be across the board, ie, console versions would be $72.
Yes, the sentence was an exaggeration, but I've seen a cross sample of gamers, who are so ravenous, that if a developer/publisher chose to release the game for $500 1 month early, then $250 the day of, then $125 1 month later and then $50 another month later, there is a significant amount of gamers out there so ravenous for particular AAA titles that they would gladly pay those high prices. And as of late it seems that this kind of maximizing on investment might be an actual possibility if they keep this up.
It is across the board. Last gen console games only cost $50 dollars, and to the best of my knowledge, they still had to pay licensing fees then.
Releasing a game for that much is not a possibility. The political and public backlash the company would receive would destroy them.