It's difficult for readers to extract useful information if they have the cognitive overload of learning a new layout on each page. If your pages look similar, people may begin to identify them as yours. You may find it useful to develop a style guide to remind yourself of how you format your pages, or to help others build pages for your site. Build small nodes for online viewing Experience shows that most readers best digest smaller chunks of information. Very few go on to the next screenful, even on long documents.
Smaller nodes download more quickly.
Smaller nodes give better results for search engines. It may also provide a next and previous link. Not everyone enters your pages from one of your links. Some enter through search engines, some through links someone has added to your pages, etc. etc. By providing some context, you help show readers where they are.