These days, I never game on my computer, so a RAM of 8GB is, for me, a lot more than I could possibly chew. For all my gaming needs and whatnot, I have my consoles, so whenever I feel like playing something, I turn to them. Well, okay, I do game on my computer, but ones I try don't require that much of memory; they seem to run perfectly fine from the amount I actually have, which would be 4GB.
4GB seems very well-balanced, if you ask me, and I'm more than satisfied with it. Mostly, I use my computer to browse Internet, chat, and watch videos, and I don't exactly believe that people need too much RAM for things like this. Can my computer extend its RAM, though? I think so; I remember reading it in its manual. If I remember right, it's able to grow up to around four more gigs or so.