I rented the first one when it first came out and it scared the crap out of me I didn't even bother with the sequels but I've been contiplating on Netflixing them.
Also zilla103192 never use Wikipedia as a source ANYONE can edit it.
They were all "bad but good" movies, except for Raptor...which I couldn't stand. But still, they are good for cheap laughs, especially the puppet work.
Oh, and who could forget "Greetings, green brother!"?