Ending would have been better if...
Yes, I do like this movie. I know a lot of people don't, but we all have our opinions, of course. I don't intend to start a flamewar here.
Anyway, I showed this movie to a friend last night and it occurred to me. A better ending would have been if Christine's backing away from Clay and refusing to take back the button made Clay the new owner. Then he would have been dragged down and Chris would have been nailed by the train. Even more gruesome and unpleasant, but a better twist IMHO.