I caved and went to Goodwill again. My hunt was not as fruitful this time, but I did add 'Bride of Chucky' to my VHS collection. That was the only Chucky film I wanted so that series was easy to get.
I also got Psycho 3 and 4 on DVD (including the first two I have on VHS, that completes that collection if I don't count Bates Motel (1987) which i should at least check out now that I think about it). And a 4 horror movie DVD collection containing: Night Train to Terror (also have on VHS), Snowbeast, the Devil's Nightmare, and Moon of the Wolf.