As much as I dislike a lot of my job and the way it messes with personal life, I am thankful for it every time the paycheck doesn't bounce!
Ping, I don't know about you, but Tom and I have an issue with age. That fifty mark scares a lot of employers. Another issue for me if I were to ever need it is that my degree is good for one thing and one thing only. I have friends that have found that out and returned to a business they were burnt out at. They are both doing fine so far, but I often wonder how much longer they will (can) keep it up.
Good luck to all that are in the market!