homer on 21 May 2015
It's going to come down to price. The thought of buying one cartridge and being able to play it on two devices sounds nice, but if having a bluray drive and producing blurays is cheaper, Nintendo will have a bluray drive in the NX console. Cross compatibility for all games can be accomplished by other means anyways. For example, a free digital copy for the other device could be included in every new physical purchase of a game. A NX cartridge player isn't out of the question either.
Ultimately, any potential advantage to using the same medium for both systems is a distant second to price.
"Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth." -My good friend Mark Aurelius
