Do you suppose that's what was missing from DHSAB for you? Because the dual life that Billy/DH (hm...DH Doctor Horrible and DH Dollhouse, hm...) lives resonates for me personally, as does his terrible reticence to speak to the girl he likes, and as do all the stories he tells himself about how one single attainment will make him into a the "real person" he was meant to be.

I have yet to find that element in Dollhouse, but the notion of it being there makes me a little more interested in watching it.