I think variety is one of the key reasons people like anime so much. You may not be into battle-focused anime like DBZ, Bleach, and Naruto but maybe you like comedy or romance. There will almost always be a series or movie that suits your tastes in anime. There are so many art-styles and ideas in anime that are unique to Japanese culture that I find intriguing.
I also love the flow of Japanese language. I think it's a very beautiful language and it has a very specific structure, so eventually you don't always need subs to understand lines. I'm not opposed to dubs however it can be very distracting when even one of the main characters is poorly done. I'm currently watching XXXholic on Netflix and it has pretty good dubbing, but I also watched Soul Eater in english and they butchered my favorite character. Dubs tend to be very hit or miss which is why I tend to opt for subs if possible.
