In April I quit my job of 16 years, I could not carry on dealing with the stress, of being in a job where the sun never set; the money was great, but the money was no longer 'worth' what I had to give to get it. It wasnt just the job itself, it was the commuting and the cost of commuting (car/petrol/carpark/train), and lunches and dry cleaning and work functions and so on...
It was scary not working, I have always had some kind of job since I was about 14. Im still not ready for work, and I will never go back to that high-stress 'professional' environment, my goals now are just to earn enough, to live a fairly basic lifestyle, work local, maybe pedal/walk to the place, clock in and clock out.
I have definately reached my point of security, and more money doesnt make me feel any better.