I think Facebook is much more than a website for organizing events with people. I'd like to see the stats, but I'd assume a minority of users actually use that functionality consistenty. The appeal of facebook is that it is a collective hub of the social statuses of all your friends, acquaintences, enemies, rivals, etc and a soapbox for an individual to stand up on every once and a while. Want to know what your old friend from High School is up to - oh he has kids now. Remember that hot cheerleader from college - oh got ugly and is unemployed. Remember that girl that broke your heart? She is single and depressed while you are happily married. Yes, it is that shallow of a service, but at the truth of it, so is mankind and society and I don't see Facebook going anywhere anytime soon.