If you look at his next several books, Christine and Firestarter which are standalone. Cujo, in which its speculated that the killer dog is the killer deputy from Dead Zone. The stories in Nightfall, which include the ones that appear in Cats Eye, Children Of The Corn, and a short story set at the start of the flu outbreak from Stand. IT, his next magnum length book, set it Derry, another Maine town, nothing to do with Roland's world. Yet at the same time the DT series are being released, Drawing Of The Three, Waste Lands. Back in this world, we start to see The Shop appearing and being referenced more in the books.
It is massively unfair that Stu goes home to see his baby grow up and Larry doesn't. They died for no reason.