I am glad I have this in common with everyone. I literally can think of a build in a couple of minutes. Like today at work I thought of a build for my old high schools yearly auction. They typically only do high end type stuff so if I get the green light by the committee, I am going to build a sick "Regis High School" single speed.
I get such a joy out of figuring things out on my own and knowing they are done the right way, usually the first time. Recently acquiring my tools, I set everything up in my parents shop out back and have spent a lot of hours in there thus far. When I am focused on a build, time flies and I do not seem to tire.
Pure enjoyment.