It's a bad idea to buy up retail Switch games based on "rarity" because they can easily get reprints at this point. It has already happened many times. Examples are Atelier Ryza, Ys VIII, etc.
Korg Gadget was a "limited Japan exclusive" and had people scrambling to buy at inflated prices until an ESRB version suddenly dropped and crashed the price.
Then there was the Walmart release of Tiny Troopers XL rumored to have a "limited print" and people were tripping over themselves buying from scalpers for $60+. Now there's a seller on eBay sitting on tons of copies trying to sell at $30.
I'm sure there are many more examples like this. I almost bought into the hype for some of these but I'm glad I refrained.