I assume this was the same for the Harlequin Romance Novels too? I knew a few women over the years that had a bunch of these books. They seemed to digest them like monthly magazines.
In some ways it's sort of a business dream to be able to keep repacking the same nuts and bolts to make something slightly different for consumers who will keep paying. It's pretty efficient.
Still I've not read a Harlequin Romance nor have I seen a Hallmark movie. This doesn't mean I've not seen all of the Star Wars movies or a good majority of the Marvel ones.