That would be like saying that Halo is the source of the 360's power, what is left of it, or that mario galaxy is the source of the wii's power....no it isn't any one thing, but a combination of several factors, namely: ability to execute affordable pricing and to what degree it is affordable, ability to attract online users, ability to attract developers, worldwide strength of brand, technological longevity or will the console's users be bored/angry (like the rrod issue)  with the console after a little while?

 All of the other titles sold far, far less than these three, which is why I didn't show them. But, if you would like; Here are all of hte MGS titles released on a PS system. This just displays my point further that MGS is not a system seller.

Pos	Game	Console	Publisher	Hits	Score	Sales
1		Metal Gear Solid		Konami	9,770	7.82	5.59m
2		Metal Gear Solid 2: Sons of Liberty		Konami	10,587	7.85	5.56m
3		Metal Gear Solid 3: Snake Eater		Konami	13,714	7.87	3.97m
4		Metal Gear Solid: Portable Ops		Konami	4,799	7.72	1.04m
5		Metal Gear Solid 3: Subsistence		Konami	4,289	7.60	0.47m
6		Metal Gear Solid: Portable Ops Plus		Konami	2,249	7.78	0.28m
7		Metal Gear Solid 2: Substance		Konami	1,708	7.30	0.16m
8		Metal Gear Solid Integral		Konami	397	7.55	0.10m
9
10		Metal Gear Solid: The Essential Collection		Konami	595	10.00	0.05m
11		Metal Gear Solid: Digital Graphic Novel		Konami	403	7.58	0.04m
12		Metal Gear Solid 20th Anniversary: Metal Gear Solid Collection		Konami	899	8.41	0.03m
13		Metal Gear Solid Comic Book		Konami	442	8.19	0.00m
14		Metal Gear Solid 4: Guns of the Patriots		Konami	37,614	8.01	0.00m
15
16
17		Metal Gear Solid VR Missions		Konami	618	7.56	0.00m
18
19		Document of Metal Gear Solid 2		Konami	238	7.79	0.00m

I think people are worried, because it's only tracking as well as the PS2 did. At this rate, it's doomed to only sell 120 million consoles. It needs a game to save it.

http://vgchartz.com/hwlaunch.php?cons1=PS2&reg1=All&cons2=PS3&reg2=All&cons3=X360&reg3=All&weeks=102

1. My thread was about WW sales, not 1 territory. WW PS3 sales have actually declined since the beginning of the year.

2. My point has been focused on dramatic changes. Not  <10k per week, that has also been on decline since GT5P released. Look at the chart. PS3 went from an average of 73k to 125kat launch down quickly to 82k 2weeks later to another big launch game and peaking at 182k and now 80k again. At best that's a 7k change. But, it has only been 2 weeks. I bet in another 4 weeks we will be back to the low 70's, i.e. normal.

So, I was not wrong. But, your bolded part is the whole point of my thread. ONE game will not show a lasting affect. But, like in 2007 a slew of changes and games can. 

I will not be eating crow come Jan 2009 when the PS3 is still behind WW figure of the 360 and as 2008 moves on we will see no major shift in PS3's sales throughput compared to this year.

I beg any of you to save this post until June 2009.

Right now PS3 cannot break the 200k WW average. If one month (week of July 19th)  after MGS4 releases the PS3 has a sustained WW average greater than 200k I will eat crow.

i think it will help it sell a bit,but it wont change the war

Yet.  By the end of the 360's lifetime it will have outsold them all individually.  

With regards to the OP, I haven't actually heard anything sounding like MGS4 was being considered the PS3's "savior."  Last year all you heard was "just wait until GT5:P, MGS4, GTA4, etc..." I haven't heard anything like that for some months.  PS3 fans (at least the rational ones) have accepted that the PS3 won't skyrocket to dominance overnight, but it will have steady sales and eventually wind up second.  Games like MGS4 are no longer being thought of as jumper cables, but rather as extra cans of gas for a long trip.  

 (sorry if that last analogy sucks, it's all I could think of) 

I wouldn't call a choice of one SKU without bc a "BETTER SKU LINEUP"

Hehe. 

Try aligning regional launches.

GTA IV was it's biggest game. People have to understand that PS3 is going to be number two. That's all there is to it. It doesn't have a "savior". It will increase sales a little bit but nothing like GTA IV.