well from my perspective the girls did a lot more than pins and buttons. I think that in many respect they were the fabric that held things together, they provided a friendly face, advice on matters that BOS and out alleged managers could not offer.
they would cover for you if you made a mistake, they would pass on a note about a friend travelling to the crew, they would let you know if someone was running late.
Park your car for you if you were late or arrange for your wife to collect the house keys if you had taken hers by mistake.
They would arrange your passport and your visa and many more things.
You cannot measure there loss in terms of buttons and pins in my opinion.
Personally i would take a pay cut to keep them. and multiply that pay cut by ten to get rid of a CCM