Well, back in the day a lot on here said they would never pay for online.
But credit where credits due, PSN has improved over the years.
3 or 4 years ago it wasn't worth paying for (and to be honest, if i want a game, i buy it day one or not long after release, so ps+'s free "we'll decide when you play this game or not" games don't man squat to me)
Now a day's take away the "free rented games" that i don't care about, and as a service, i still think Live is top dog, but the justification to pay for PSN is now just about valid.