I'm an animation student, and I'll be completely honest, I'm not really all that interested in comics. I never have been--I've always preferred animation above all other storytelling methods. The only reason I started making a comic was because I wanted to tell a story and work on my storytelling skills (I want to be a storyboard artist in my career), and webcomics are much more feasible for a single-person team to take on as opposed to an animated series or a complete and full game, etc.
The reason I prefer animation to comics as a storytelling method is due to it's added dimension of sound, voice, music, timing, etc. There's really only so much you can convey with still images on a confined page, and for me, all of the subtleties that go into an animation that make the world in said animation feel more "real" is what pushes it way over the edge. Of course there are comics that try to include animated panels (I personally find these distracting, actually) or background music to pages, but it doesn't come anywhere close to animation for me.
As @SleepingPoppy mentioned, people are just passionate about storytelling in general, and I'd argue that comics are pretty much one of the easiest ways to go about it, save for writing a novel. Just because it's easy to start doesn't mean that it's easy to do WELL or SUCCESSFULLY, but it's not as daunting for someone with very little storytelling/drawing experience to pick up a pen and start doodling a comic as opposed to starting an animated film or programming a game with little to no experience.
The nice thing about having started a comic is that it's given me an opportunity to read other comics I probably never would have touched if I hadn't started, and I'm glad to have that opportunity because I've been introduced to a lot of very talented artists with very unique and interesting stories. However, I'm pretty sure comics will never become my absolute passion in terms of what I'm seeking as a consumer or what I'd like to create as my magnum opus in the future as a creator.