I don't understand why that sentence is always mentioned as a notably good opening sentence on its own. If it wasn't written by Steven King in a book that's con

I don't understand why that sentence is always mentioned as a notably good opening sentence on its own. If it wasn't written by Steven King in a book that's considered to be good, would anyone really identify the sentence itself as a great opening sentence? Of course I don't think there's anything wrong with it as an opening sentence, I just don't see how it's notable.