I really really liked this. I thought it ended on the perfect note. And I especially liked badass-yet-broken Laurie Strode. But I don't need to see that for two more movies.

Why? Because she's the anchor to the franchise. The tough character that the others can hide behind because she's more angry than scared. Horror movies have a way of killing off those characters in the sequel so that the rest of the characters (and the audience) feels like there's no safety night, no fearless protagonist to stop the killer.

That would piss me off. In the same way that there didn't need to be any more Terminator movies after T2. We got the closure we wanted/needed.