It's relevant for browsing with multiple tabs. The more RAM you have, the more you can do in other tabs after switching away from a tab without having that tab reload when you return.
It's very annoying if you were somewhere in the middle of a long page, go to look up a few things on other sites, come back, and your original tab reloads and you are back on top.
It's very annoying if you were somewhere in the middle of a long page, go to look up a few things on other sites, come back, and your original tab reloads and you are back on top.