Exactly. Additionally, it's very easy to implement a single-page-app-esque page button that simply hides one page to make room for another, then allows you to r

Exactly. Additionally, it's very easy to implement a single-page-app-esque page button that simply hides one page to make room for another, then allows you to return to that page without loading any more data. Considering how rediculously easy that would be, I'd personally build it in as an option. I do realize though that it's trendy these days to simply omit all options and preferences in favor of keeping it simple.