I called BS. The 3DS and the Vita also used game carts. Vita at least got several games that were ports of PS3, like Sly Cooper. The Vita version was 40 bucks while the home console one was 60. Of course, I may be wrong since Vita cards were 4GB tops while Switch can have 32GB ones.
Off-topic: Also, I don't get why everyone is saying that Nintendo "went back to cartridges" and such. They used those on all their portables. 3DS used them, come on!








