My son will be 8 months this weekend. He likes his pacifier, but he isn't dependent on it. It's sort of just his personality, because at 3 weeks he would take his finger and flick it out of his mouth.
Anyway... we are the same as you are, don't think that after a certain age (close to where he is now) they should have a pacifier. Mainly we are letting him still use it for a teether...he chews on it (poor thing got his first two bottom front teeth at the same time and now has a third one coming in). But we don't give it to him when he is playing, and I've even stopped giving it to him at church, or just if he is being still and quiet in general. He's gotten to where he will be quiet if I coax him too, without the pacifier, so I think we're making good progress. So, basicly, just limit how often she has it.
The younger you phase it out, the better, b/c they don't have too much of an attention span to remember they want it. But our son still goes to bed with his, and HE spits it out when he lays down. Good luck!
PS...Make sure though that you have other things for her to suck on, because a lot of times it helps with their teething. I am taking my son off of his because I was a thumb sucker until I was 12, because no one ever stopped me and it was such a habit. My son tries to suck his thumb too, and even though they do need things to suck on to soothe them, having something to suck on constantly can lead (not always) to bad habits that will do more harm than good...like my having to have braces. I ended up thrusting my tounge against my teeth so much I caused an overbite. Just a thought.