1) Unrestrained immigration
2) Worship and reverence for a hippie/slacker/hipster culture
3) Regulations that drove anyone with a stake in the free market economy to pick-up and move to another state.
We left California for Wyoming because of AB 32 which would have required my husband to replace all of his perfectly good construction equipment with "green" equipment. He laid off about 80 people and moved everything to Wyoming. We had one hard year and then he started getting contracts in the oil boom and we've been fine ever since.