I think it does have a high standard. I mean, I like to think that Nintendo itself has a high standard because of the amount of time it takes for each iteration and the control Nintendo likes to have over its own IP.
I also see it as a flagship IP for the young male demographic. In a way, Zelda is the coolest and most mature IP. The one that would probably succeed the most in the West. The one game that an older non-hardcore Nintendo fan might be interested in and have nostalgic feelings for.
The old Zelda games were also very good apparently, given how much emotional attachment people have for them.
Mm, maybe I should ask my mom to give me the Wii she never uses and play some Zelda games (only Zelda games I finished were the Gameboy ones, lol).
