Do you think Apple will ask users to pay $$$ for upgrading from a previous version of OS X to OS X Mavericks? Historically Apple has always charged users for OS X upgrades, but I find this a bit strange considering that iOS upgrades are always free. Why can't OS X upgrades also be free? ---- EDIT: Whoops! After browsing a little bit, I just realized that there's another active thread on the exact same topic. Sorry for the duplication.