So currently I have the base model late 2012 Mac Mini with 4GB of RAM + 500GB storage + 2.5 GHz i5 and I'm wondering if going from 4GB of RAM to 8 is worth it. Currently, the machine runs fine and it's undoubtedly usable, but a lot of times, many actions can take anywhere from 10 or 15 seconds to a minute to open things like System Preferences, Preview, Mail, Chrome, etc. and there's some lag when doing things like clicking the Apple menu in the top left...I can click it and move my mouse away and then menu will pop up a few seconds after....I often see the beach ball....Safari feels like a death sentence. I'll see friends on their MacBook Airs and they look to easily outperform my Mac mini. Now that I think about it, that's probably because they have SSDs, something I don't have in my budget to upgrade to. What's it like going from 4GB to 8GB of RAM and is it worth the money?