I, too, mostly buy non-fiction these days. (This has actually led to a Situation, because now that I have a baby I most often want mass-market paperbacks to read - anything else gets too heavy to read one-handed - and most of my NF reading comes in hardcover or trade paperback. So I've had to branch out into the scary world of published fiction again.) I used to be more balanced in my fiction:non-fiction ratio, and then I discovered fandom, and realized:

1. I didn't have to suffer through a lot of what I didn't like in order to get to what I did. Fandom could provide almost everything I wanted, and it was much less likely to piss me off or alienate me in the process.

2. I no longer had to worry about running out of good things to read.

3. I could read forever without having to worry about our foundation collapsing under the weight of our books.

*joins in the fandom hug*