It's probably that there are just no other serious concerns. Concerns are relative: people's anxiety is well, constant - it's a product of their innate anxiety as a psychological trait - it almost doesn't change over time for a particular person at least not on long intervals, i.e. outside of short-term stress.

Question is what takes priority, in the economy of full employment and lack of any external stress or obvious conflict, and very low crime - it's logical that prices take the top place, simply because what else?