Xbox One-u can only reused the game once! with a $10-15 fee to reinstall it to ur own xbox one, but u can go to other peoples xbox n log onto your account using their Xbox one n play ur game! so basically ur games are save onto a cloud that follows u everywhere!
PS4, you can share games n play ps3 games also, but! u CANNOT! transfer your data from ur ps3 to ur ps4 system! so its quite useless to play ps3 games!!! u can resell n use, used ps4 games over again but theres also a fee to play online i think o.o
[ Edited by synkro on 6/14/2013 5:45:24 AM ]