Exactly this. Nintento et al. are unwaveringly adversarial in their insistence around locking down games and aggressively pursuing archivists (who they claim are pirates), even after said games are no longer available for sale.

It is our moral imperative to preserve this software despite the interests of these companies, lest it be lost forever.

Due to the unique form factors of the DS, 3DS and Wii U, it is very unlikely that the majority of these games will be ported to newer, single-display systems like the Switch, so the argument for them selling them again on a newer system is largely moot at best and disingenuous at worst.