For the longest time I was brought up listening to only two genres of music, pop and rock. So in the past few years I've been trying to expand my interests because I think that you can only write to the extent of your knowledge, and if your knowledge is limited you can't write past that.
Even when people are rich and successful on TV shows, there's always some trouble - you have to poke holes in them, throw them out of a job, put a pie in the face.