Seriously, why not? I'm not going to directly judge Sticker Star because I haven't played it, but all of the changes they're doing makes it seem like I'll find this game as bad as Super Paper Mario compared to the amazing experience that was The Thousand Year Door. This post in a NeoGAF thread aptly summarizes my concerns:
No levelling up.
Limited battle moves.
Bowser kidnaps Peach storyline.
The sticker system seems interesting, but exchanging the entire battle system for those one-use stickers is a bit odd. The fact that there (potentially) won't be any cool and memorable partners, based on classic Mario enemies, instead having this weird crown thing is disconcerting as well.
I dunno, man. I'll be getting the game day one and I want to love it for sure, but I can't help but feel worried when I see what they're doing to a system that, in my opinion, worked perfectly fine in TTYD and that they shouldn't have messed with in the first place. In some ways, it feels like they're just modifying the game to appeal to the masses; maybe people who aren't familiar with turn-based RPGs and who need simplified mechanics to get through it.
Is anyone actually excited about the changes they're making?