You can't go anywhere in the writing world these days without hearing that word incessantly. I am seriously sick of hearing about niches. Everyone wants to serve a niche, which is perfectly fine. I just wish they'd stop using that word. I am not a niche writer and I never will be. I'll write about anything and I'm proud of it.
I went into journalism because it meant doing something new every day. Being a reporter required constant exposure to new topics. I went out to a logging company and learned all about logs and the timber industry. I went to a factory that made grocery store freezer doors, learned all about them, and wrote an interesting article about those suckers. Even if you're a beat reporter, you learn so much every day and that's still the type of writer I want to be. An unfamiliar topic doesn't scare me. A client wants me to write about vacuums? Sure. Furniture? Absolutely. Fungal infections? Bring it on.