Might not be the best thread for this but...playing games online on PS3 has been a joke so far for me. I've only ever found one person to play a game with on PSN. Honestly I don't really play online games much, and apparently the games I play have absolutely zero people playing them ever.
For example, I have had my PS3 since February or March I think. Anyway, I downloaded Super Puzzle Fighter immediately. Mostly play local, but have checked probably an average of 2 times a month since I bought it. Never have found a game online. Next I bought Worms. Admittedly, not a very good Worms game so maybe that has something to do with it. Searching many, many times, I found one person, not one game mind you, but one person. Played a round with him and then he disappeared. Never have found another game of Worms. Now, my third attempt at playing games online has been NBA Jam. I have only had it for about 2 weeks, only checked online for games 3 or 4 times probably. Have yet to find anybody to play with. I am lucky I mostly play local and am pretty cold to the idea of online. There is definitely no way in hell I'd pay to play online without a guarantee of a user base to play against. I know people will probably say I'm playing the wrong games, or should have got in on the games when they were originally released or something, but ehh whatever. And no I am not going to go play FPS #3590.
The funny thing is, I never have had a problem finding people to play with on Wii. I've never not found anyone on Dr. Mario, Mario Kart, or Mario Strikers. (However I have not played Mario Strikers in a few years so maybe that is dead)
So with all that said, they better not charge for PSN. It has almost zero value to me as of now and I can't speak for everyone, but I know I am not alone.