I'll say this as a defense for the bad spoof movies. Most of them have enough laughs in them to be worth watching once, or maybe twice. Like was already mentioned, they aren't
Casablanca or
Gone With The Wind, and no one goes into them expecting these movies to be that.
If you go into them with that knowledge, you can waste an hour and a half and get a couple nice laughs. I recommend DVD, though, so you don't have to pay
I will admit that they are just getting worse.
Scary Movie was pretty good,
Not Another Teen Movie was funny as hell,
Date Movie and
Epic Movie had some good moments, and even
Meet the Spartans in all of it's awfulness was funny. Definitely not seeing
Disaster Movie until DVD, though.