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.
I don't really buy that. The Wii and DS had high software sales as well. I'd say the Switch has less of a stigma attached to it than the Wii, which for most of its life was (unfairly) pegged as little more than a "casual" system, which caused a lot of "Core" games to suffer on it. Compared to the Switch, where all kinds of games succeed on it. Core, casual, and anywhere in between. Besides, I don't think a hardcore-focused console would come with detachable candy colored motion controllers as the default.
Wow, such a serious gamers machine /s.