Yeah its already out and seems to be pretty good too in my opinion. Its for $59.99 as usual like many new PS3 or 360 titles and you do have to pay to play it online. Upon purchasing it you get 30 days free to play it online. In the PSN Store they have payment selections to chose from.
For 1 month is $14.99, for 3 months is $29.99, for 6 months is $77.99 and for 1 year it is $139.99. Some people try and compare this game to World of Warcraft which in my opinion is a pointless thing to do since they are two totally different MMO's in their own worlds. By far I like the game and the many options its gives you upon character creation for your hero or villian.
Some may say its expensive, others may not. Depending on whatever game, it simply just depends on your choice whether you prefer to pay to play or not. As for me, I've chosen that I will be going for the full year payment.
As a correction for the year payment it is $134.99. (Sorry about that)