For many store owners, being open that extra day means having to hire more staff. For the large stores, it doesn't matter much, but for the mom and pop's, it could mean a world of difference in the bottom line. That's why many of them oppose opening. In a small town where there's only one or two stores, its not that big of a deal to remain closed even if they are able to be open. In a town with high levels of competition, like Manhattan, they pretty much have to remain open or else lose some of their customer base.