What is the deal with Facebook?

OK. I'm really trying. I am. But I don't get the draw to Facebook. Yes, I have made contact with a couple people I haven't heard from since high school (that's about 16 years ago for those of you keeping track) and that was really neat. I like that part. But I don't get the "addiction" that everyone talks about. How they have to check it all the time and can't go a day (or hour) without it. I find that I have a hard time ever checking it.

I get a new email everyday saying so-and-so recommended this friend or to join this group or that. I haven't joined anything yet because it seems like you have to give access to your account or something to do that and I haven't had time to research what that means or the repurcussions of such an action. So, I'm missing something here. If you are a big Facebook user, please tell me why you love it so much! I hate to think that I am missing the point but alas, I am!