Paper Mario: The Thousand-Year Door is my favourite game from the GameCube.
The game is a somewhat rare instance (off the top of my head) where the sequel has managed to outdo the first game in the series in every way. The original Paper Mario on the N64 is brilliant as well by the way, which is why TTYD is so impressive to me.
If you like turn-based RPGs then you should like this, particularly if you have an interest in Mario, games with charm, attention to detail, or turn-based actions that have more interaction than simply choosing moves.
As for the rest of the Direct, it was very middle of the road to me. I could purchase more games, but due to time I have started to be more strict with myself on what I buy over the years. Realistically, I'll only buy Mario RPG, Mario Wonder, and Paper Mario from what is on Nintendo's radar over the next year. But even then, I'll space those out due to it being a bit Mario overkill.
I don't mind this at the moment as we are so far into the Switch lifecycle - this Direct clearly shows that a new console is coming next year. I'm convinced Metroid Prime 4 will be a dual release for both consoles. I think we'll see a few more remasters/remakes dotted in throughout 2024, such as porting over Zelda Wind Waker & Twilight Princess. The games are good and will look great, much like Paper Mario, and it's just easy work for Nintendo to fill in gaps in the calendar as they transition.