It Doesn't Make Sense to Buy Games at Launch

[burninmylight]

At this point in my life, I am a retro gamer. By the time I get to a game in my backlog, it's a retro game at that point.

If I never purchase another game again and played only the games I currently own in my backlog, I still probably won't be able to play them all in my lifetime. I'd have to quit my job and find someone to fund me to do just that.

With those things in mind plus everything mentioned in the OP, I see no reason to ever buy games at launch. Back in the Wii U days, I felt a sense of obligation to go get games early to show support, but with everything on Switch hitting record sales for its IP and just generally feeling less FOMO as I get older, the only times I feel pressured to get a game is when:
A) A physical copy is on a good sale, so supplies are of limited of course
B) There really is a big benefit to pre-ordering or getting it at launch, like when it comes with physical rewards like an extra controller, posters, etc.
C) It's a tiny IP that the publisher finally remembered exists, and the fanboy in me has to show that support (hi Advanced Wars!)