Probably because its good. :)

It depends what you watch and what you are into. There are several anime series that I just love.

Cowboy Bebop
Michiko y Hachin - is AWESOME!!!!
Naruto - was long but good
Afro Samurai
Bleach
Blood + - I really liked this one
Desert Punk - seriously one of my favorites. Its ecchi, but funny as hell!!!!


There are plenty out there. I occasionally watch now (Before Zoe, I watched a lot more). Being a black geek girl, when guys find out you like sports, anime and video games, its like you are a frakkin unicorn. :)