You know, everyone has his own opinion on that issue. I prefer single player FPS because I'm sick of all that multiplayer nonsense. Playing the same maps over and over again just kills the fun. I enjoy a good story line which I think makes a good SP game worth playing not just once but several times. I don't mention the gameplay and other direct gaming aspects as without them a game is not fun at all. I assume they're some kind of basics for a solid game.

As I already told, that's just my opinion.

There are many things that can be done in a SP game that can't be done in a MP game, and vice versa.

Telling a story with multiple level/missions is one of them, immersion is also higher in SP games because the developers can control more of the environment-IE no ppl running around yelling "OMG 7t4t wa3 2o 7am3!"

AI as it is now still needs a lot of maturing but in the future as it gets better will make SP games even better, as you will have opponents who act in character and are smart.

Replayability is an issue yes, usually you don't play a SP game right after you finish it unless it is really good-While MP games have a longer lifespan due to it's human Vs human nature, they themselves do get old as well unless people make mods for the game-mods which also can be made to enhance the SP experience as well.

Also a SP game can be played at any time, long after the MP community is dead-you don't need to find a good server or even have a internet connection.

Both sides have endless possibilities, especcially the merging of the two: Coop.

I only purchase MP games. SP games are not even close to being worth the high price tag they hold. I'd rather buy a good movie on DVD for 20 bucks and watch it a few times than buy a SP game for 70 bucks and not play it more than once through.

My opinion of this issue can be summed up by the following analogy:

single player/fun for a week : multiplayer/fun for years

If I was a storyline-happy gamer I would have purchased an Xbox or a Playstation. After all, how many times can you play through a storyline? It is the same crap over and over. Now multiplayer on the other hand is different everytime you log onto a server. I think I played Quake 2 single player for a day or 2 when it came out. I am STILL playing Quake 3 multiplayer since the day it was released.

The two aren't even close and it is the multiplayer facet of the game that even gives PC games any share of the gaming market in my opinion. I honestly don't know anyone who plays PC games for the singleplayer aspect and I have a lot of friends who are into gaming.

multiplayer is definitely the best as if you just have a single player game and you complete it - what do you do next? the game is finished and you don't get as much value-for-money out of it

Your movie analogy is flawed to say the least. Lets take Lotr: The Two Towers for example, it runs for about 2.5 hours and costs about 24 bucks. Now a GOOD SP game newly released will be around $80 (In Canada) and usually contains around 30-60 hours of interactive gameplay, if you do the math you'll find that you get a lot more for your money with the game.

Heck I've been playing Morrowind for months and I still haven't finished the main quest, and I haven't even gotten around to the expansion packs!

Anyways, I'm sure you haven't been playing JUST Q3 out of the box for all these years, it relies on new mods to keep it alive and interesting, the same is for SP.

Even in MP games you will see reptition, people will start to use the same strategies over and over, maps will get old and boring, etc. There is no progression in either a story or missions-simply multiple teams slugging it out.

Both modes of play have their advantages, it's just that the SP side is currently severely hampered by something MP games are not: bad AI.

Which is why I preordered it for the PC , Bloody shame it doesn't have COOP-isn't that the way of most games these days .