Oh, I know your pain!!! Our son was forced to quit his "cold turkey" when he was about 20 months old. He got thrush in his mouth (wasn't even breastfeeding anymore) and the doc said it could be overuse a pacifier that exacerbated it. So that was that. My husband and I had already talked about trying to wean him off his pacifier, but - like you, it sounds - couldn't stand to listen to him cry for it. But once he got the thrush, we just said, that's it! He never got it again. And it was HARD! My son was ADDICTED to that thing. And, frankly, *I* was addicted to it, too, because it was so easy to put him to bed or calm him down during the day just by giving it to him. So quitting cold turkey was a challenge.
I'd say we had about a solid week of really toughing it out, where he would just CRY for that pacifier, and I was so tempted to give in - especially at night when I was tired and just wanted him to fall asleep! But really...after about a week, he almost seemed like he didn't know what a pacifier WAS. Now, (he's 28 months) when he finds one laying around the house, he might pick it up and chew on it in a funny way and say "Look Mama! I'm a baby!" or something like that. It's a novelty to him now. He spits it back out right away after making his little joke.
For me, him having that thrush was a sort of blessing in disguise, since it forced me to be strong about not giving in. But I would encourage you to stick to your guns. It SEEMS like an eternity right now, but it won't take too long. Brace yourself for a week or two of hell, and you should have a fully detoxed toddler on your hands by then!
Good luck!