I'm currently building an office. By that I mean I've done all the work to coordinate building an office. I also ran the network wiring and will do the drywall. I built a few of the framing panels and contracted out the rest. I LOVE building things with my hands but it's been a year and my office isn't done. I have a kid and a job and pets and a million incomplete tasks. Sometimes I do it because I was poor and think about money and other times I just want to know I can. When things finally need to get done though, the cost benefit analysis is usually done pretty quickly. Nobody is paying me to do framing and the time I get to spend with my family is finite, so I pay.