Is it common to remove pages from the DOM when a user navigates to another page, or is it better to just hide the page?  All the templates are loaded and cached in single-file.  The cache contains all the raw templates.  When a template is requested, the element is built and appended to the DOM.  From then I can either hide and show the page when navigated to or I can cache the built pages, where I would add and remove the pages from the DOM.

I'm guessing 50 to 70 pages with more than half being data-heavy.

Thanks for any advice