For all of $5 at WalMart you get:
Screaming Skull
Frozen Alive
Jesse James Meets Frankenstein's Daughter (Haven't had the guts to watch that one yet.)
Carnival of Souls. Weird, out there film, way ahead of its time. I am certain most modern horror film makers have seen it.
One of my favorites - that old Saltair, UT resort looked absolutely foreboding in the evening. 
The director said he was driving to Hollywood when he saw that complex, realized its scary potential, and had a script written in days to take advantage of the abandoned atmosphere (Salt Lake receded and made it obsolete).
I visited Saltair a few years ago and spotted a building vaguely similar. Alas, a sad echo, as some transients burned the original down and it was rebuilt on a smaller scale for rock concerts. The attendees trashed that place as well.
Herk Harvey, the director, played "The Man" (dead guy at the complex). I read where it was claimed that George Romero got the idea of "Night of the Living Dead" from that movie.