Just a bit of a personal story, don't feel obligated at all to read it.
My dad, when I was little, managed a pretty successful company called Poly Roll. He made a lot of money, but he had stretched himself thin, and he felt like sometime he would just snap. He eventually gave it up and started a farm. The farm kept on taking more and more improvement before it would be sustainable; just more and more effort and more and more time. He was breaking his back over it. Eventually, he divorced my mom and kept trying, kept going. Recently, he's gotten a lot of work done and just ran into the wall of how much work a human being can do for the second time. It's getting to be too much time in the day that he has to spend and the money has basically run out. He doesn't know what he's going to do anymore, but he's selling off the animals and equipment.
I'm really broken up about this.