Relationship novels are also taking a hit, apparently, with sales dropping dramatically recently so sometimes I feel very stupid for sticking to writing about relationships.
Dull and stupid, yup, that's me.
If I was really clever I'd be writing about - well, obviously anything that I'm not writing about at the moment. There seems to be a flurry about the Holy Grail/Mary Magdalene/Freemasonry every ten years or so, so I'm sure that the fashion is about to come round again. Werewolves who are freemasons? That can only be killed with splinters from the True Cross piercing their heart? That sounds quite cool.
Truth is, I write about relationships because they interest me. I don't write about werewolves because they don't. If my genre goes out of fashion - and there's no special reason why my genre should be an exception - then I have to adapt to that and write to my other interests.
What I can't do, and shouldn't do, is write because I think something is currently fashionable. That would be daft. Firstly, my heart wouldn't be in it, so the writing wouldn't work. Faking it makes for awkward, poor quality writing.
Secondly, if I started to write a novel now, I wouldn't get it done for 6-12 months. Getting a deal in a new genre might take another 6 months. Then getting the book onto the shelves would be at least a year. Okay, if I went for e-publishing the lead times would drop, but there's still the time taken for me to write the novel and by that time the fashion would have moved on.
Thirdly, I believe that while fashions come and go, people will always want to read about other people. I think relationship novels will be around for ever, even though they may not be packaged by publishers as such. And if I plod away with my books, with luck I'll still be there when the fashion comes round again. L may be for Lycanthropy, but it's also for Longevity.