[quote name='mokmoof']If I've never plated a Modern Warfare game, is this worth my time, or should I skip straight to the (much-discussed) sequel?
Edit: And jeez, it took the thing this long to get down to $15? Mass Effect was $5 not too long ago...[/QUOTE]
It's worth your time. The single player campaign is really good, short, but worth the price. It has a really good story, and memorable characters for an FPS. And, for what it's worth, I think there are more people playing CoD4 multi than MW2 (and possibly BF:BC2).
MW2 has a lot more action and excitement, like you're playing through an action movie, but the story is disjointed, confusing, and at times preposterous. Every new mission jumps to a different character, with 6 in all, so I was often confused as to who I was, where I was, what I was doing there, and why. But it was edge-of-your-seat nonsensical excitement!
Personally, I enjoyed them both. The first has a great story, while the second is filled with action and excitement.