It doesn't apply to everyone who works in the IT industry, but as most of us get older, we lose our tolerance for things which don't Just Work, at least in our home lives. When you've spent all day working with new and sharp-edged technology, you really want to come home and have your appliances act like appliances, not like computers which misbehave and need debugging. Having said that, a related phenomenon I've experienced over the past year is that when you are promoted far enough to stop doing coding for a living, you may have a resurgence of interest in hacking around with stuff in your spare time...