Life experience is just as important as an education. You'll be able to experience four season. Summer , Fall, Winter and Spring. Believe me winter sucks.
Try it out for a year, if you feel that it's too expensive for what it brings you then move back to California. You can always look back on that experience.
It's nice to know that you appreciate what your parents give you.
I went away to study in another city (not as far away as you) and I loved the experience. Actually I believe that it kept me more focused on my studies.