(as for number three it shiohw with the asioh and the we'll just say asifhsp ahem)
Yes, exactly.
I'll add Halloween and Nightmare on Elm Street as well. And I guess they have the same problem. Though Halloween 3 was awful, Nightmare on Elm Street 3 was one of the best of the series. I guess you never can tell.
I agree with you on those type of horror movies. The series don't really add to the story. It's just a redundant cycle of money makers. And they have that concept of milking the cow 'til it's dry, which is very annoying.
Saw, however, is like a puzzle in that there's still some missing pieces. So in that regard there has to be more installments in order for it all to come together. And It? leaves you with a cliff-hanger at the end, so that you want to come back for more.
Saw it is!
(Seriously though, number 3 will be rubbish)
Seriously though, don't have such a bloody rubbish attitude. The writer and director of Saw is young, imaginative and new school. So you won't be disappointed.