Why do I need volumes of RAM? I currently have 158 browser tabs open on my computer.
(Not an exaggeration.) Plus databases, CAD software, Vectric, Illustrator, GIS, etc.
Discussions of "framerate" aren't terribly important unless you're video editing or playing games. What matters is how a person uses their machine. I've been in tech support / hardware support for decades. RAM is more important than anything else on my machine.
This is not necessarily the case for everyone but in my experience people work faster when their RAM is doubled. And their work speeds up again if they double it again. (Then again, SSD drives have relieved much of this constraint...)