What are some anime shows whose creators/writers knew they were going for

[Blackangel]

what are some anime shows whose creators/writers knew they were going for a niche audience from the beginning and didn't give a damn?
it can be any show or some particular genre too.

 

[Grungie]

Anything weird and quirky like Sayonara Zetsubou Sensei and the Monogatari series.

 

[Blackangel]

Anything weird and quirky like Sayonara Zetsubou Sensei and the Monogatari series.

i haven't completed watching the monogatari series but i know a lot lol
so can't fault that at all