> 1. The number of sets per year increased too much, there are too many cards being printed to keep up

My local shop has an entire wall of the last ~70 sets, everything from cyberpunk ninjas to gentlemen academic fighting professors to steampunk and everything in between. I think they are releasing ~10 sets per year on average? 4 main ones and then a bunch of effectively novelty ones. I hadn't been in a store in years (most of my stuff is 4th edition from the late 1990s) I did pull the trigger on the Final Fantasy novelty set recently though, for nostalgia's sake.

But yeah it's overwhelming, as a kid I was used to a new major set every year and a half or so with a handful of new cards. 10 sets a year makes it feel futile to participate.