All-in-all with Switch you have all Nintendo’s eggs in one basket, this is the first handheld since 3DS and the failed WiiU so it was probably obvious it would sell well as it’s the only way to play the latest Nintendo games,
There is one interesting side note for that however. In a lot of informal polls that I've seen (mostly streamers polling their audiences), the split is roughly...
- ~1/3 of users mostly use it as a mobile gaming platform.
- ~1/3 of users mostly use it docked with their TV.
- ~1/3 of users use both equally.
Ratios vary slightly either higher than 1/3 or less than 1/3 for some categories depending on the audience composition. But in general it roughly comes out to that.
While we can't say anything definitive about that as that may not translate to how one chooses to buy their gaming console, it would seem to imply that if there were a dedicated home console and a dedicated handheld. The current userbase would see ~66% of them buying the handheld while ~66 of them would buy the home console. IE - Nintendo would have sold more consoles if they had a dedicated handheld and home console.
Of course, that ignores a lot of factors. Would a cheaper handheld only have sold to more than 66% of the current userbase? Would a more powerful home system sell to more than 66% of the current userbase?
And the most important one, how many of those ~33% of users that use it equally as a mobile gaming platform and a home console would have gotten one or both? I can only speak for myself and some of my friends that I asked, but some of us wouldn't have bought any Nintendo console in that case. We aren't traditional Nintendo game players though. We bought the NSW purely due to it's ability to play games at home or on the go.
This is mirrored in part by some streamers that had never played a single Nintendo game until the NSW came out. IMO, the NSW attracted a lot of customers that aren't traditional Nintendo gamers purely based on it's versatility and the fact that Indie developers are having great success on the platform which leads to more Indie developers porting their games to the platform.
In that case, a handheld might have sold to less than 50% of the current user base and a home console might have sold to less than 50% of the current user base.
So it's also possible that if the NSW didn't exist and they just had the traditional handheld and home consoles that they could have sold less combined units than the NSW has sold.
But then things get more complex as a mobile only NSW might have leeched more consumers from the 3DS user base. But then that might also lead to lower overall sales. A mobile only NSW isn't an exact upgrade over a 3DS with it's dual screens. Some prominent game IPs (like the Etrian Odyssey series) haven't made the transition to NSW purely due to the lack of dual screens on the NSW, for example. The second screen is an integral part of the gameplay for that series.
Basically, yeah, it's complex because there is no situation in the history of console gaming that one could pull from to try to infer how sales would have gone for dedicated consoles versus a hybrid console.
Regards,
SB