I weaned both my boys shortly after they turned 1 year (I think 14 and 15 months). I would nurse them first thing in the morning, and replace one of the day feedings with milk. Then they had milk at lunch and dinner, and I would nurse only at morning and bedtime. Then I eliminated the morning feeding, so nighttime would be the only time I would nurse. That was the hardest one to get rid of, for both my boys (and me), but eventually I just read, rocked and put them down. They both took pacifiers, so that helped.
I was happy with my decision for a couple of reasons. One, I didn't feel quite as tied to the house as I had been before. It was liberating to know that I didn't have to rush home in time for bed, or couldn't go out for more than 4 hours, etc. (My second son wouldn't take a bottle at all) My husband could put the kids to bed instead of me, which was good for him. Bedtime snuggles are the best snuggles of the day!
Ultimately, it's up to you and that you're comfortable with your decision. If you do decide to wean, replace the comfort snacks with snuggles and a book and see if that's just as good for her. I was surprised at how well my sons did with it. I think the novelty of a sippy cup with milk was very helpful.