I don't see it as a big issue, if some one who enjoyed my company all the sudden decided that I'm not worthy of their time after finding out that I'm a gamer, then they have some petty issues to deal with, making them the problem, not me.
I think we should worry less about people giving us the stink eye over a hobby and worry more about making the hobby itself more welcome amongst society. It's pretty easy to do if you think about it.
If said person thinks stereotypically of gamers and likes books? explain to them that games give you the ability to interact with the storyline, and talk to them about those text-based games once they start saying that the graphical aspect of gaming ruins the imagination that books are supposed to enhance.
If they like movies, then explain to them that it's kind of like movies in a way, except you're able to act out as the main character(s) in the plot line to advance the storyline of the movie. This could be done with books as well.
I'm sure if "Movie goers" and "Book readers" had a quick and simple word that defines what they like to do, they would use it as well. Which is why I kind of disagree with Yatzee that we shouldn't use the term "Gamer" when other hobbies don't have such a word to define themselves, when really I just don't think they have found a word that fits properly. "Movier?" nah... Surely can't call them Watchers because that just sounds creepy!
My sister had a boyfriend who used to call Gamers "Drooling idiotic zombies," because my niece and nephew apparently get this half awake stare when they play games. Taking offense by this, I asked him what one of his hobbies was. He said he liked to watch Nascar... I never laughed so hard in my life.
I'm sorry for all the Nascar fans out there, but if you're going to put down gamers for their hobby when you enjoy sitting on the couch watching cars make left turns all day, I can't help but mock you... Then again there ARE racing games out there as well...
That's why I don't understand why there's a stereotype behind gaming. Take any hobby out there and I'm sure there's a game of it some where. Then again, there's that whole stigma of "Why pretend to do such n such thing when you can do it for real?" Well.. What if you enjoy skateboarding, but it's raining cats and dogs outside? Invite a few friends over and play some Tony Hawk!
Not to mention that games that mimic real world hobbies like skating or even rock band can spark some ones interest in learning how to do such hobby. In fact, gaming branches out in all sorts of forms of hobbies and styles that if some one were to look at me weird for being a gamer, I wouldn't be able to help but give that strange look right back at them.
There's a game out there for everyone and anyone who alienates themselves from it by talking down on gaming is the real problem. For that I don't think we need to drop the term just because there are others out there that look down upon it. Not to mention that with EVERY sort of hobby, there's going to be some one out there who's going to say that their hobby is the number 1 thing to do and everything else is petty in comparison.
It all comes from people doing what they do best by focusing on the bad aspects of everything. Even when the facts are right under our noses we will ignore them for the sake of making fun of whatever it is we're making fun of. It's what we as people do to make ourselves feel more secure about who we are and what we do, and the quicker we learn this about our human nature the quicker we can can accept that we aren't going to be able to please everyone...
So just do what you do best and have fun doing it! If some one is going to throw you into a certain stereotype for what you do, then by all means let them, because chances are, they're into something that may even be more ridiculous than what you're into.
Heck, there are even bad stereotypes for people who live completely healthy lives or are very active in sports or muscle training. That right there should show you enough about who we are as people...
EDIT:
I never understood the part about using the term "Gamer" to unite myself into a specific group. I'm not sure if Yahtzee said it first or if it was some one else before him, but to me, that's just ridiculous.
The term Gamer does not unite me with everyone else. For games in general are in such a variety that no two Gamers are going to be the same. The whole agenda with console wars and genre wars alone shows that we're everything BUT unified. "My console is superior to yours, FPS games are the end-all/be-all of video games. blah blah blah!"
The term Gamer, defines what we do as a hobby. It's not some super secret club that has a specific password that if answered incorrectly you don't get to be in.
GamING conventions, if you strip away the video games of it, it's just another public gathering of people who share similar interests where we can get a personal experience from it all around people who share the same mindset. It's the same with bars, night clubs, concerts, sports games, and theaters. Take away what makes those places specific and you have a place where people go who share a certain interest who can enjoy themselves around people who think like-wise.
And with all of them, there are stereotypes that can come to mind that will make others think poorly of it all, like the sloshy drunk, the overdosed night club dancer, the smelly headbanger, the jock with the beerbelly and body paint, and the annoying 15 year old girls who don't know how to turn off their cell phones.
I guess what I'm trying to say is... Who cares if there's a stereotype against gaming? You're bound to find stereotypes in just about EVERYTHING you do, so why should I not call myself a gamer just because some one else is ignorant?