Is it worth it to buy a PS3?

Before anyone answers this question I don't want fanboys to answer it. I have a 360 and I want to know if there are enough PS3 exclusive games that are actually really good and worth it to buy a PS3. I don't care about the graphics, the blue ray player, or the motion sensor controller (I have a Wii and it isn't as much fun as I thought it was) all I care about is game play especially online. I play Xbox live all the time but I want to know if the PS3 has any games with amazing online play (mainly shooters) right know or if I should wait a little bit longer to get a PS3 when more games come out. If any really good online games are out or coming out what are they and when will they be released. I only care about exclusive PS3 games so don't list any games coming out on the 360. And what are some PS3 exclusive games coming out that are supposed to be very good and it does not have to have online. Thanks and I only want answers from people who have experience playing games on both systems.
I know about the new update for the PS3 which will let you have XBM I just want to know if I should spend the money to get the PS3 and which one to get.
I have never played a game from the MGS series so if anyone who have played MGS4 and other online multiplayer games like COD4 and Halo 3 which one is the best in your opinion for online
I don't care if the PS3's online is free if they don't have any good exclusive online games to make up for it