How about the fact that Khedira really isn't that good. Forget about everything else, this guy was sitting on the bench because RM could use him in a pinch, and he was OK with that.
Above average at best, would look great at Milan... He will not get many minutes at Juve unless a significant injury occurs or we win the scudetto in March and need body doubles to play remaining league games.
- - - Updated - - -
http://gianlucadimarzio.com/en/calciomercato/khedira-announces-his-departure-from-real-madridits-very-difficult-leaving-this-club-but/
"But my doctors said if I sit on the bench any longer, my legs will experience atrophy."
No value other than free and use him as practice player.