The thing is...when your main character is an unstoppable killer...it kind of makes sense to keep telling more story as long as its profitable. With care and talented creators, the sequels would be able to stand next to the original instead of having to be washed away from continuity every few years.
Why did John Carpenter leave anyway??
I think Carpenter felt he said all he needed to say with first Halloween. The only sequel that really felt necessary was the original H2 which showed the second half of that night, but I think John was happy just leaving it off with Michael Myers running off after being shot at the end of H1.
What's the word on Halloween 3?
There's going to be another one?!
I thought Michael died at the end of II?
Like that ever slowed him down in the past.