How many major exclusives does the Switch need to gain out each year to maintain popularity?

[zygote]

The Switch is riding on a different kind of hype.  It is fun to have the flexibilitiy it provides.  The joycons, the portable, the small size, etc.  It is really "play your way" and it works.  It can get ports all day long and still sell above expectations.  The question isn't how many exclusives, but what type of exclusives does it need and how many games of each genre does it need to keep momentum (exclusive or not).