I just want to say it. I love Mountain Lion. I've been running this system now for over a year and it's just been great. Least issues of any OS X release ever for me. Very stable. Runs great even with tons of apps open. Only the iCloud syncing with new iLife and iWork would lure me to Mavericks, but I don't like that Apple removed features from Numbers, Pages, and iMovie so I refuse to "upgrade" those apps anyway. Besides they should have released those for Mountain Lion! I don't look forward to Mavericks' removal of "Labels" in the Finder which I rely on. I hate the idea of losing the colored filenames and replacing it with little floating balls of color. Ugh. Aside from that what would draw me to Mavericks? I am afraid of it breaking some of my old apps that rely on QuickTime. Also, old AudioUnits and hardware drivers seem to break with every upgrade, so I'm worried about that; it took a miraculous effort to get Pro Tools working with my 002 Rack in ML.