Sony's announced yet another promotion to try to rope users into purchasing more content through the PS3 and PS Vita's PlayStation Network store.

Users who spend $100 or more on PSN during the month of October will receive a voucher for $20 to—you guessed it—spend on PSN in November. It's a win-win, right?

Sony's been stepping up its game with PlayStation Plus subscribers lately, offering great games for free through the membership service. And the company also announced recently that it'll be releasing more full retail games digitally on launch day, so there should be plenty to look forward to on PSN.

Do you think there's enough to interest you on PSN to spend $100?

[via Joystiq]