I think when Mac comes out with different OS systems, a lot of people skip out on them because they are under the impression that nothing has really changed, but OS X Mavericks is one of the first OS X upgrades that I think is truly worth it because it helps save battery life.
OS X Mavericks is the latest iteration of the Apple desktop operating system. It's a free app, and an easy download from the Mac App Store. It brings new features, stronger security and advanced technology to your Mac. New features are available in iBooks, Maps, Safari and Tags. Use less power and watch your Mac perform better.