Ya I saw the prices and thought it was the price for the whole con at first but no it was per night.
Once I'm not poor I'd love to go to pax or one of the other really big cons. Only cons I've been to have been relatively small ones at college campuses (one I just went to this weekend. It had been a single day con and this was the first year they had a second day), never been to a "real" con.