I think that I have to agree with just about every single poster on this thread. While I feel that the concept of the seminary is a great thing, the price and stigma has gotten out of control.
When I was in Beis Medrash I wanted to learn in Eretz Yisroel, and my parents didn’t have 2 nickles to rub together at that point. B’H I had little difficulty finding a Yeshiva that provided room and board plus 3 meals a day. All I had to do was find a way to pay for airfare (worked in a store for the summer) and we found some creative ways to offset the tuition. The result was the 2 greatest years of learning and spirituality of my life. I made lifelong connections and got to meet Gedolim in person. The expierence changed me in a way that no Yeshiva/school in America ever could. It is for this reason alone I would venture to say that girls should go (as long it is a well structured and well supervised program). However, I think that the cost is preventing this from becoming a reality.