ultimately it is a matter of preferences / priorities as the page count is limited.
If you have the space, go for it. If you need to decide what to cut to fit in all of GH, then that very much depends on what gets left behind.
Personally I could do with a shorter example setting if I got monster building guidelines instead. If these show up in the MM, that is moot. Others might want more alternative rules or more fleshed out travel / exploration rules, and so forth. As long as space is a consideration there is not one correct answer for everyone