Another awesome thing so far is also the fact that every game that's free on Playstation Plus I get to keep as long as I have PS+. So that means, so far since getting PS+ a few days ago that I have gained XCOM, Battlefield 3, Jet Set Radio, Saints Row The Third, LittleBigPlanet Karting, Labyrinth Legends, Pinball Arcade, Malicious, Machinarium, Knytt Underground and Oddworld: Munch's Odyssey to my PS3 collection. Also, If I ever get a vita I also will have Knytt, Metal Slug XX, Gravity Rush, Pinball Arcade and Zero Escape. Some of the games that are for both utilize cloud saving and allow me to use the same save file on vita and PS3 as well, which is awesome.
For $50/yr and I got all this in the first 3 days, that's pretty epic. I didn't even download all the free games because I knew I wouldn't play them all because I wasn't interested in some of them. There's also new games each month available to download as well, apparently it's two new PS3 games a month and one or two vita games.
And people wonder why I like my PS3 more than 360.