What exactly is a "gamer?"
Before I got into tabletop RPGs, I considered myself a gamer for indulging in the culture of those who played video games and identified with the fun, silliness, or greatness of video games at large. This is still mainly how I define "gaming."
Once I started to play D&D 3.5, I identified as an even greater gamer, now having branched into the more obscure branches of "gaming," which I then considered to merely be the appreciation of the niceties and the participation in games of all sorts and their culture.
So, imagine my surprise when I started listening to the Brilliant Gameologists. In one of their earliest episodes, one of them makes the assertion that someone who plays video games shouldn't be called a gamer; the term is reserved for those who play tabletop RPGs! Why ever is that? Why are tabletop games afforded a distinction above video games? Can they both not be as entertaining, intellectual, and able to bring people together?
Whatever the reason, what do you consider to be a "gamer?" Why do you think that? How are the cultures of video games and tabletop games different or similar to you?