I was enticed by things other than pay. Plus I was led to believe that my pay would quickly increase. I left 2 regional jobs when my expectations weren't met.
In 1998 my starting pay was low, but upgrades were fast (2 years or so). I also lived 20 minutes from my domicile. In 2002 I was displaced, and in 2003 I down-graded. My expectations were no longer being met and in 2004 I left.
In 2008 I was garenteed choice of domicile and was told movement would be quick. The pay sucked, but quality of life issues looked ok (minimum time on reserve, short commute, a decent line quickly). When the writing was on the wall for displacement, I left.
So, I've walked twice. I also voted, and lobbied hard, to strike at my first job. I certainly wouldn't count myself as a person who is willing to work for any amount. I know I'm worth more.
Everyone should set their own bar. Don't expect the unions to do it for you. We need to pressure the unions, politicians, the public and anyone who will listen. And we should be willing to walk the walk.