At the end of Carrie, Stephen King burns down the gym. (In the Sissy Spacek movie, Carrie's house also collapses at the very end. Remember the hand popping out of the rubble?) In Salem's Lot, Ben and Mark burn down the whole town at the end, particularly the Marsden House. In The Shining, Danny et al. escape with their lives while The Overlook burns to the ground behind them.
So Mr. King's first three novels end pretty much the same. If he weren't perhaps the greatest writer of the late 20th century, I'd be pretty upset. As it is, I guess I'll let it slide. At least until I read The Stand. If it happens again . . . I'll probably read the book after that, too.
PS---It's worth noting that Cujo, one of the most beautiful works in modern American literature, if not in the entire history of English literature, does not end in any sort of funeral pyre.