Amazing how Nintendo can keep the file size really low while delivering amazing visuals

To be fair, textures and such are much smaller in Nintendo titles like Mario, nevertheless, quite impressive.

It's good that they're keeping their file sizes for their games really small but they kinda have to with the internal HD space the NS has. I think that this will be a problem that ultimately impends most 3rd party devs/pubs from putting games on the NS. I hope that Nintendo eventually comes up with a NS SKU with a much higher internal HD to accommodate 3rd party devs/pubs who want to bring their games to the NS and gamers who want to play those kind of games without having to buy a miniSD just to play the game.

That's good that they are keeping the games small

Two questions:

1) Why?

2) How even?

2 way different systems and ways of development, apples and oranges folks.

On the topic, the info sounds great as a switch owner, and having owned a Vita and the outrageous price of a 64 GB card and I can get a 128 GB on the switch for even less, and the games will be a decent size, good times ahead. Good times. As a portable system, this is great news to me.

Caffeinade raised a good point.

Many games simply have too many cutscenes. A game such as Quantum Break shouldn't be 130gb when GTA 5 is about 60gb. 

A game such as Ni No Kuni or Professor Layton have cutscenes, but at the end of the day their 16gb and <1gb size files stay reasonably low.

Funny enough, level 5 made both series, and typically out their games on Nintendo systems. I suppose they've learned not to bloat their games 

6 GB is not a large file size considering the absence of fmv and longer sound files.

Agreed, way too many cutscenes nowadays. Ofcourse Quantum break was half a tv show so that would be like saying Phantasmagoria had too much fmv. I would have loved to see more hand drawn scenes in Ni No Kuni though. Every time an in-engine cutscene played I felt disappointed, it would have looked so much better hand drawn. Of course hand drawn cell animation is very expensive, file size wasn't the contraint I bet.

It's funny. Before digital downloads and installs games were praised for being bigger. It comes on 3 discs, epic!!! Plus the bigger games came with concept art, behind the scenes footage, deleted scenes, documentaries. Nowadays it all has to be small with intelligent delivery.
So much for storage space / bandwidth outpacing game sizes... The whole 4K obession is premature.

Anyway No Man's sky is only 3.4GB, Why is Mario so huge :p

I'm not sure what you're saying here.  That if Sumo Digital can't do it on a self-published game then Nintendo shouldn't be able to do it, either?  Have more faith in Nintendo.