I would say that if you want to do something else it is definitely worth spending four more years working on it. What's the point of having a degree in something you aren't happy with? I know, I know some people just use a degree for the jobs it will bring, but I am romantic and think you should go to school for what you love (which is why my degree is in English). If you can move to another school where you would be happy then do it, you only live once and you don't want to regret this forever. Just because a school is "the best" and expensive doesn't mean its the best for you. I went to an all women's university and I LOVED IT. There were really small classes and the professors were wonderful people. I can quite honestly say it was the happiest time in my entire life. I just felt like I belonged there. I think when you find the right school you will feel the same way. (Yes, sorry, I'm being so sappy!)