Last month was a great time to be a PSN user with four great PSN exclusives during their "PSN Play" promotion. Sony's stepping things up this month with their new Only on PSN promotion which among other things includes classic PS2 titles on PSN.
Details on the specifics about the games featured can be found here, but we'll sum up the important parts of the promotion for you.
If you're a PlayStation Plus member you'll get a 20% discount on each game during it's first week of availability. In addition, anyone who purchases $60 or more during the month of October will get back $10, which includes any of the Only On PSN games, purchases of games, add-ons, movies and TV shows in both the game and video sections of the PlayStation Store, your paid subscriptions for PlayStation Plus or Music Unlimited, movie rentals or purchases through Video Unlimited and any games or virtual items you buy in PlayStation Home.
As for the PS2 classics, they will be emulated versions of the originals, which means they won't include Trophy support, button remaps, etc., but they will be priced at a steal for $9.99. And when you have rare games like God Hand, GrimGrimoire, Maximo: Ghosts to Glory, Odin Sphere and Ring of Red being the first games available that price point is easily a steal.