Weird Patterns: Horror Films In Space

It is time again for another random observation from a man that is full of nothing but that.

Here is a list of films and see if you can find the common thread...

Jason X
Galaxy of Terror
The Dark Side of the Moon
Ghosts of Mars
Critters 4
Leprechaun 4
Creature (1985)
Plaguers
Dracula 3000
Alien
Hellraiser: Bloodlines
Apollo 18

I've reviewed most of them at this point, so the answer should be obvious...

They are all set in Space.

Here's my question: why?  Many of these films are Sequels or copies of one of the films.  Alien mostly gets a pass here.  That said, they break down like so...

Zombies in Space (Plaguers/Ghosts of Mars), Lead Villain in Space (Jason X/Critters 4/Leprechaun 4/Hellraiser 4), Vampires in Space (Dracula 3000), evil power in Space (Galaxy of Terror/The Dark Side of the Moon), random Monster in Space (Alien/Creature) and tiny rock monsters in Space (Apollo 18).

My question: is there a huge crossover of people that love Sci-Fi Films about new Worlds, advanced technology and exploration & people that like to see people die in different ways?

Just for comparison, how many Sci-Fi Franchises have added Horror to themselves later?  Silent Running...From Zombies?  2011: The Day We Made Contact With Dracula?  Logan's Run: The Full Moon?

I didn't think so.

Horror Films in Space.  Weird, right?

Weird Patterns: The Horror Film Rule of Threes

Do you see things, but think that you are crazy?

Well, you are- seek help.

I, however, am not.  Here is one (of possibly many) examples of stuff that I notice...

Here are a select list of Horror Sequels...

Ginger Snaps Back: The Beginning
Paranormal Activity 3
Insidious: Chapter 3 (just announced)
Cube Zero
Ichi -1
From Dusk Till Dawn 3: The Hangman's Daughter
Puppet Master 3
Cold Prey 3
Ringu 0
Cabin Fever: Patient Zero
Red Dragon

What do they have in common?   Well, there are two things...

They are the third Film (with some stretching).
They are all Prequels.

Weird, right?  Is there a reason?

Just for fun, here are two extra ones...

Twin Peaks: Fire Walk With Me (a film that followed 2 Seasons of the Show)
The Thing (2011) {follows the 1951 and 1982 films}

I repeat: weird, right?