Galapagos on a budget is it really possible?

I have always wanted to go to the Galapagos, but every time I start dreaming about it, I get discouraged. It seems to be able to go at a time when we a family with a teenager in high school could go, is over $10,000 a person. Basically the two week Christmas break, or in July. How am I supposed to do this on a budget? Anyone with ideas, thoughts or tips would be greatly appreciated.