If it's something small like "Face With A Name" then I don't really care much. It's really the hard badges (A community member can achieve) I'm aiming for currently, stuff like "Long Time Listener, First Time Caller" and Neo. Those ones I do actually care about.
Oh, and I no longer care at all for the Genre Wars badges. There's just far too many of them and I don't care much about Genre Wars anymore, so I've put them all at the bottom of my badge collection, along with the Webby badge. I don't think of that one as much of an achievement, as everyone who was around then got it.