Commenter who goes by the pseudonames World Mustache Champion, Jorge Videla, Robert Mugabe etc wrote:

there’s only one horror movie worth watching.
all others are shit for prole retards.
of course 2001 and Dr Strangelove and Apocalypse Now might be classed as horrors by some…but i wouldn’t.
it was nominated for best picture before i was born.
it was re-released a few years ago (in theatres) and i went to see it.
that was The Exorcist.
peepee needs an exorcism.
the same director made the best picture winner The French Connection…a movie i hated when i was younger but loved when i was older

An excellent short clone of The Exorcist is Tales from the Darkside Season 2 Episode 9 The Trouble with Mary Jane:

It is true that the The Exorcist is one of the horror films that appeals to the higher social classes (though not exclusively so). Other relatively higher class horror includes:

Frankenstein (1931)

Psycho (1960)

Night of the Living Dead (1968)

Carrie (1976)

Dawn of the Dead (1978)

Halloween (1978)

The Shining (1980)

Creepshow (1982)

Beloved (1998)

The Dark Hours (2005): I personally crowned this the greatest Canadian horror film of all time.

Trick ‘r Treat (2007)

The Strangers (2008)