I think it basically depends on where your interests lie. For me, economics has been really useful in helping me understand politics and history much better, as well as general current affairs, where you hear economic terms and theories all the time.
For example, studying economics has helped me hugely in understanding the Thatcher section of my history AS.
Perhaps on its own, without the other subjects to give it context, I would find economics a little more dry. Certainly that would be the case if I wasn't using what I had learnt all the time. If science is your thing, then you may find economics relatively useless, and much less interesting.
I love it, but I can imagine a scientist being turned off by it.