I don't think this free for everyone thing is right, Apples website still says
"* Pages, Numbers, and Keynote are free on the Mac App Store for qualifying Mac computers purchased on or after October 1, 2013. OS X Mavericks required. Downloading apps requires an Apple ID.
** GarageBand is free on the Mac App Store for all compatible Mac computers with OS X Mavericks. Additional GarageBand instruments and sounds are available with an in-app purchase. Downloading apps requires an Apple ID."
So it seems like it is just for new computers, which is what they said in the keynote 2 days ago.... Except for Garage Band strangely enough.
"* Pages, Numbers, and Keynote are free on the Mac App Store for qualifying Mac computers purchased on or after October 1, 2013. OS X Mavericks required. Downloading apps requires an Apple ID.
** GarageBand is free on the Mac App Store for all compatible Mac computers with OS X Mavericks. Additional GarageBand instruments and sounds are available with an in-app purchase. Downloading apps requires an Apple ID."
So it seems like it is just for new computers, which is what they said in the keynote 2 days ago.... Except for Garage Band strangely enough.