Talk:Just Dance 2017/@comment-24264457-20170309121639/@comment-1465604-20170310144339

Because they likely negotiated for streaming rights to all JD2016 songs at the same time as they negotiated for their rights to use them period, i.e. no extra costs or negotiations to add them to JDU. Since they did these two negotiations at the same time, they probably got a better package deal for both rights than had they negotiated both separately years apart. Easy, peasy, squeeasy.

If they want to add songs from, say, JD1, they have to renegotiate the rights, probably pay more money and then have to work had to remake the songs the way they remake them all (unless they were already remade for JDN, but I think a few songs even look different between JDN and JDU?).

Also, why not add songs from JD 2016? Not everyone who bought JD2017 will have JD2016. Having JD2016 songs on JD2017 also means you don't have to switch games to access some JD2016 songs.