I'm a big fan of science fiction. My sci-fi collection (currently under recovery) includes over 50 books and a fair share of movies. I've always preferred reading that instead of Spanish language literature, even though it's in my native language. When I was thinking about it, I think I understood why: whereas the classics of Spanish language (especially Mexican) literature tends to dwell on the themes of identity and "how did we get to where we are", sci-fi asks what can we become.
I for one find that much more interesting.