Hmm Facebook

I've been on Facebook for a while now and initially it was a bit of fun, then my use declined to once/month glance. I now find, a lot of my contacts are using it a lot, and of course, our target market - The XBox Generation, live there all the time. I love(d) the idea of Facebook, I just don't want to have any more vampire bites, sheep, etc etc. Is there a way to keep Facebook semi-serious without missing the point entirely?