Soundwave on 05 September 2019
The Switch's userbase is older than prior Nintendo systems and has more core-centric and enthusiast gamers. That will lead to higher software sales and a more rabid buying base.
Every 5 years that passes, Nintendo gains more and more adult fans because every generational cycle sees more Nintendo fans who were once children graduate up into adulthood and a certain number of those people are "Nintendo lifers", so that portion of the fan base grows every year basically.
