Halo: The Masterchief collection for Xbox One is well over 60GB.Thinking now I suppose Nintendo has the monopoly of the market for the size of games using cartridges, they could use a game as big as they liked but Playstation & Xbox still using Bluray discs they can only go to the size of the disc which is a plus. I know a standard bluray disc can hold 50GB's but I also know a PS or Xbox cant use dual layer blurays so the Switch is certainly future proof if they wanted a huge game for example.
Of course that doesn't fit in the BD.
So what are Microsoft and Sony doing?
Well, they have the monopoly of forcing you to install games on the hard drive, and downloading from the internet the rest that didn't fit in the BD. Meh. But they sure do.