My 2 cents:

- You now likely have the money/time to pursue passions you didn't know you have, or would have developed if you didn't pursue software development as intensely.

- Even if you had/have passion for computers, being paid to do something you wouldn't do otherwise can quickly drain that passion.

- We're built for sunlight and exercise, not LED light and sitting, so you may have felt increasing physical discomfort that only the former can alleviate.

- Woodworking and farming were never lucrative enough (or as lucrative as computer work) to convince you to make the switch for money.