Yes, my hobby was computers, and (plus college) I turned it into a career in IT, but my roots were programming, then building, overclocking, tweaking, then leveraging my electronics backgroud, also repairing, then security, etc. It just isn't necessary any longer, now we fortunately have people making mountains out of mole hills. #themagicisgone (and that's not all bad, at all, let the next generation learn and keep the ball rolling).
There is a great satisfaction in DIY whether it be cars or something else, and the substantial money savings, and knowing you did it right to the standards you wanted. Plus there is keeping what you have because if you replace what you have with something newer, odds are very high that the replacement will require more repairs, at higher cost, and higher technical skill. Some will say this is progress because on paper the newer widget is more energy efficient but they don't take into account what a conservative usage pattern is and how much *energy* goes into the replacement product and how much ends up in landfills. I digress.
Every weekend though? Heck no, I had three vehicles with the GM 3800 and didn't have to do much to them besides normal repair items, though they were notorious for intake manifold issues (which I had to fix on all 3) but otherwise almost bulletproof.