One reason I still enjoy the tinker in the garage is actually more than one reason.
After a lifetime of jacking a car up, now I have a scissor lift. I put the cars in the air just to wax them or do electrical work in the engine compartment on the 911. It is great to not have to bend over and kill my back.
Also, I have the garage heated, and an air conditioner. Teo ceiling fans, and lots of lights, my music playing through a decent set of speakers. There is a fridge in the garage and mostly water, but almost always a celebratory beer after a complex project is done.
Oh and I have a bathroom in the garage, so I can wash my hands easily and regularly and the facilities are right there.
I sufficient tools to tackle the project and I have to work hard to find a reason to go buy another tool.
I can work at my slow pace and there is no deadline, except mine. In other words, I can do it comfortably and at my schedule as a hobby. Lots cheaper than golf, boats, and tons cheaper than airplanes.