For me, my spare time is worth more than what I could save. I work hard, put in plenty of hours, not complaining because I like what I do, but I need time from work to recover. I have plenty of non-income producing interests such as cooking, gardening, spearfishing, scuba diving, white water rafting, tour kayaking, backpacking, being a dad, time for Habitat for Humanity, working with Riverkeepers, facing down fascists when they show up in Portland, pretending I can fix things, and so forth. It's all about where you want to spend your time.