Oh wow, you do have a bunch.
Other than my terrestrials, outdoors, I have 3 - a Wilsonaria, a Beallara Marfitch 'Howard's Dream' and a Dendrobium NOID. I think part of the problem I might be having is the new windows I had installed - they have some shading to them and they're double paned, so they might not be getting enough sunshine despite the southern exposure they have.