Detroit MI is a declining economy, has been a declining economy. Hopefully (because I'm a Blue Oval, NASCAR kind of bubba) the auto industry around Detroit will recover and the DTW airline business will bounce back.
In the mean time, as Sailor says, at NK base stability isn't something one can count on.
We're growing (finally) and with growth goes instability. As someone who interviewed just north of dFw almost 14 years ago, it took me 13 years to get based in the base I was promised (sort of) way back in 1999. In the mean time, I bounced between bases six times. Only once did that bounce have anything to do with my choice.
It's the airline business. If you want stability go to mortician school.