The stakes have been raised, however, so $60 spent on the PlayStation Store/Sony Network Entertainment Store from today through December 3rd will earn you $10 in credit (max). Nearly everything on the store is eligible, and that includes, PS3, PS Vita, PSP, PS4 games and content, movies and more. The credit will be issued in the form of a PSN voucher code which can only be used by the account who earned it.
Think of it this way… if you buy a full-priced PS4 or PS3 game (plus something cheap), you'll be getting $10 off.
Head on over to the official promotion page for more details and rules.