Well, DS + Wii sold together 1870 million games, Switch so far only 250 million games:
So only 1620 million Switch games to sell in the next 5 years. Otherwise it is a decline compared to the 7th gen, ain't it?
It's 1 device that's 2.5 years old against 2 devices that are 13/14 years old.
Also, the DS was often purchased for individuals whereas home consoles tend to be purchased for a whole household. For example, my wife and I plus our 2 kids had a DS (and 3DS) each. But we have only 1 Switch.
Massimus - "Trump already has democrat support."