Why would Nintendo only support up to 128 GB for the Switch?

[Pyro as Bill]

Ljink96 said:

True, but we don't know what type of card NIntendo will be using. Simply using a SD card from Sandisk or something would not only be costly for a game card, but it never happens due to how easy it would be to pirate games. 

And yes, Blu Ray is very slow compared to SD cards but to remedy that we all know Sony and Microsoft implement games to be mostly run from the hard drive....which I believe will be nonexistant or very limited on Switch's side of things. Either way you slice it, 100+GB games aren't going to be normal on Switch. 

Playing from the HDD is slower than a typical SD card.

Nintendo can use 2 cartridges for 130GB games like CoD, just like Sony/MS will need 2 or 3 Bluray disks. The difference is Nintendo can run straight from the cart instead of installing to the HD or SD card.

I think Nintendo carts will run at double the speed of a HD for lower loading times.