I think it depends as far as attractiveness goes. This may be primitive of me, but hey it's the OP so here's my OPinion. My girlfriend smokes cigars (that's actually why/how we met) and I love that about her. I even tried introducing her to pipes but she didn't take to it. Which in the end I don't mind- I think that, at least in her case, the pipe seems more like a guy thing. As she says so herself, it's part of why she's sticking with cigars. That said, I'm all for anyone who enjoys the hobby taking part, and I'm sure not every woman is the same. Also, I think the pipe's the only grey area-cigars/cigarettes (I know those are a touchy subject here) are attractive across the board as long as it's not a trashy look.
I guess that's enough of me making a masogynist jerk of myself.