It's not free, they charge you 30% for the privilege of violating you tenderly at their whim.

(sorry, couldn't resist)

It's also not free as in GnuBeer either, since as a general rule they generously decline to explain the reverses in policy (pet theory: it is based on the retrograde motion of Sirius the dogstar, since Apple is clearly controlled by the reptillian lizard-people from there)