Lived in Texas my whole life (40+ years). Vast majority of my family and friends are still here. Wife and I decided earlier this year we are ready for a change. We are moving our family (2 kids) to Boise, ID in a few weeks. It's hard to quantify or rank the reasons why we want a change (although the reasons frequently referenced in this thread certainly play a big part), and we realize not all of our current issues with living in Texas will be better in Boise. We did a lot of research on various places and concluded no place is perfect. We are sad to move away from family and friends, but we are very excited about a new adventure in a smaller town with cooler weather and lots of outdoor activities close by. I was also pleasantly surprised to find my income will be the same, my overall tax burden will be slightly less, and my home and auto insurance premiums will be 1/3 of what I'm paying in Texas for comparable coverage.
Time will tell if it works out, but we're excited.