Let me know when first party Nintendo games get cheaper. In my country, they never do, dammit. And second-hand market is retarded here. Better go for new.
What I normally do is go on offer up and get good deals the games are used but I get good deals. Idk if there is a gamestop in your country but when games go on sale for $20 I buy them. But be very careful about certain used switch games because a part of the game have a digital code and you will get burned if you buy a used game without knowing. But you are absolutely right Nintendo games RARELY go on sale.
But in all honesty if people want to pirate games thats cool too because at one point I only owned 5 switch games and pirated over 1TB of games but I got into collecting switch games which is why I own so many.