I just got my new MBP and so far the experience has been great. It's a behemoth compared to my last computer, and little things like the great build quality, simplicity of OSX and the trackpad really do make the difference. That being said, I don't consider myself a power user. I use my computer mostly for entertainment and probably the most I do on here that would be intensive is converting videos to watch them on my phone or watching HD content. So imagine my surprise when I open up activity monitor and see this: Now, I suppose this wouldn't be so bad if inactive memory can be considered free memory for all intents and purposes, but it does say that basically all my memory is being "used". And this is without any real applications or games open too. If this is the case, should I upgrade to 8gb ram? Would that help resale value do you think? I plan to upgrade to a SSD when I can afford it, so might as well consider going all the way with ram too. Thanks.