I am in almost the same situation: applied to many schools, heard back half of them, accepted without funding except my undergrad institution. I think I am going to attend no funding school. I took some graduate classes, which can transfer if I stay at the same school, but I don't know what courses I am going to take after that. I think meet new people, create connections, and be in new atmosphere might be a good idea. You should ask whether you can get funding later on or not.