It's been a while since I was a teenager, so cant exactly recall, but when I went to highscool, gaming was either unknown, something considered for children or something for anti social nerds.
It wasn't exactly something you let other people know or talk about unless those were into gaming themselves.
But I digress.. is the image realy that important? As long as it doesnt affect you, who cares what the population at large thinks about your hobby.. you'll always have those weird preconceptions wheter it's about your favourite musical genre, hobby, religion, your country.. whatever.
As long as no one is trying to keep you from enjoying those things, or try to hurt you.. just smile and nod when someone is being an idiot. Because after some time, the population will be obsessed about the next big fad.
Or maybe someone who doesnt have a clue about games heard a lot about MW2, and just wants to be nice / make smalltalk?
Really, with the fact that gaming has become mainstream enough that almost every male teen plays, even if it's only a single game.. it's good. At least it's no longer the preconception that all would be gamers are school shooters to be?
And about MW2, it's not a bad game really. I can see why it got so big. It's not my cup of tea, I played singleplayer on it for a short while.. it was all very polished and 'round' in a way, it's just that it a bit too 'flashy', trying to impress me and get my atention all the time, and rushing me and full blown climatic action all throughout the levels. I like action, but I'm more a laidback player.. I need breather moments now and then. This is why I like Half-Life 2. Bouts of action and climax, with puzzling and exploration and atmosphere in between.
I'm not even old, just hit 26 a week ago, but I definitely see a change in the attention span of the newer generations. Only 10 or so years of difference, but it's noticeable how media geared to the teens of today work with completely different levels of stimulation. It's like they gear everything to the average attention span being of some guy with ADD watching MTV while doing crystal meth or something..