What would these reasons be?
Cartridges have far surpassed the capabilities of Blueray Disks. They run quite a bit faster and can hold nearly the same amount of data. It can also have the best emphasis on cross play between the NX and a handheld(that is, if they aren't the same thing).
I mispoke (mistyped). Limiting the NX isn't what I meant. Just meant there are things I hope are ironed out before it launches.
Consoles run faster than disk read speeds, so having cartridges would benefit loading times, and even get rid of the mandatory game installations plaguing consoles right now. Consoles are about ease of use and access. There is nothing easy or accessible about waiting for a few dozen minutes to install a game before you can finally play. What I'm curious is how this will affect the price of games. In the U.S. it might be swell paying $60 for a new game, but here in Canada its $70-75 a pop.
Also, its rumoured the cartridges are 32GB. BRD are 50GB, so unless there is going to be dual-layering cartridges, there may still be data to be downloaded and installed onto the NX's hardrive for games bigger than 32GB at launch. I have Halo 5 sitting pretty at 78GB with all the free DLC, and the Witcher 3 at 38GB pre-DLC. If we have to install data on the HDD to circumvent the 32GB restriction on the cartridges, I don't want Nintendo to cheap out and only offer a 250GB or 500GB HDD. Games are only going to get larger, especially 3rd party games, especially on a console rumoured to be more powerful (or as powerful) as the PS4. What's the point of all that power if you don't have higher texture packs, and more detailed models (all of which take up space). How much of that 32GB space will be for profile data and saves? Will this hard space requirement for profile saves take away space for the video game? Or will the ability to save on cartridges be not allowed to allow the full space for games, and patches, and saving game data be left to the individual internal HDD?
I'm curious to see how Nintendo handles that. Cartridges are a great step towards never having to install a game again, but they're not without their own logistics issues. I don't want to be paying $80 for a new game, still having to install data on the internal HDD, etc.