Hmmmm, I say it'd take a lot.
I'd love to see the unions fight to get you compensated for ALL the time you're working...that's a start in the right direction.
Sadly, I don't think I'd be able to make the jump anymore...as the $$ + family time can't be beat. I've been out since '09, make $45/hour with 6 weeks off a year and a great company matched 401k that's been rocking...it's not all peaches and sunshine, I miss flying and only scratch the itch in a skyhawk instructing on the weekends...still get nostalgic when I hear Waterski on the radio - but not nostalgic enough to go back...even for $45/hour first year pay at a regional, it'd be a tossup.