... I may be sorry, but I actually volunteered to be on a search committee -- in someone else's discipline.
It's probably because I usually like the person who asked me. We've worked on things before and I find that they have a good sense of humor and don't tend to want to do stuff on Fridays :).
I also think serving on search committees is interesting and difficult, and that someone from their department served on one for us a while back -- so we kind of owe them.
Of course, there will probably be much complaining and whatnot here as the search happens -- but, for right now I'm kind of excited about it.