I thought it was a good idea from the beginning, I just didn't want her to be addicted to the thing.
I only give it to her when she is fussy. Too many parents push the pacifier in the beginning because it's cute or they think they need one.
Lena slept just fine when she was a newborn with out it and so we try not to encourage it during the day so she doesn't think that she NEEDS it.
We don't even give it to her in the car. We put it in the car seat incase we really need it while we're away. I just stick it where I can reach it without a problem.
She'll be done with it by age one if I have anything to say about it. She is almost ten months old and our plan is to wait just a few more min. each time she thinks she needs it to give it to her and just keep it away from her when she is happy so she can't put it in by her self. Eventually she won't expect it anymore.
I plan to use one with all my babies if they'll take one.
A friend of mine has a son two months younger than Lena and he has never had a binky. He is just as happy and doesn't suck his thumbs either. It just depends on your baby.
Also, about the germs. Yes, you would think that thumbs will touch more and have more germs but every mom that has used a pacifier knows that there will come a time when the binky hits the ground in the parking lot or somewhere were you can't wash it and your baby is having a fit. Maybe you have a back up and maybe you don't.
AND if your baby is around other babies or will be... sometimes you find a child sampling everyones binky. Yuck.