I've gone back and forth on this. Initially I thought I wouldn't want to use a pen name, because I'd want to see my name in Barnes & Noble. But I don't actually feel very connected to my name: my first/middle names are after a parent who dropped out of my life entirely when I was still very young and whom I have no positive feelings for whatsoever, and my last name is my husband's surname, which has never really felt like mine. (It's also my kids' names, though, so that matters to me.) Another factor is that I have a fairly established career and am in a kind of role, in a kind of organization, where saying anything remotely controversial can have real consequences... and I tend to take strong stances in my fiction. Given the overwhelming possibility that I'll never make enough from fiction to quit my day job, it might be wise to keep my actual name off of anything I publish.